abertura traduzida

8/13/2019 ABERTURA Traduzida

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A abertura da senhora do jogo no to importante como no jogo de xadrez. xadrez, voc deve saber um monte de linhas

tericas de ser capaz de jogar ao mais alto nvel. No nosso jogo, temos mais liberdade de escolher o que tocar.

No entanto, necessrio ter algum conhecimento de aberturas populares. Isto vai poupar muito tempo.

Os objetivos da abertura do jogo so:

- Obteno de um jogo interessante,

- Orientao do jogo para um tipo de jogo em que voc excel,

- Tenha um jogo que voc sabe,

No estamos interessados na troca de peas, por isso, vamos abordar apenas os contornos de aberturas.

Esta seo dar uma viso geral das aberturas mais populares, mas no h muito a aprender sobre aberturas. Se voc quiser sabevoc pode olhar para si mesmo, ou visite o website em http:/Frits Luteijn / home.kpn.nl / Dammen /. Existem muitas teorias sobre asaberturas em seu site.

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Aberturas no jogo

Introduo

Jogue uma abertura depende do tipo de jogo que voc prefere

jogar. Algumas pessoas gostam de jogar jogos clssicos e seujogo de estria ser conseguir peas clssico. Outros preferemoutro jogo e continuar uma direo para obter um qui atraente e

moderno. E, claro, os jogadores que gostam de posies debloqueio tentam obter este tipo de jogo exemplos tornar isso

mais concreto.

Suponha peas brancas 34-29

Se os negros querem alguns clssicos, eles podem escolher(20-24) 29x20 (15x24) 32-28 (10-15)

Ele tambm pode atrasar clssicos fazendo e tentar

algo parecido 1 19 23 2.4034 1419

3.4540 1014 4.3228 23 x 32 5.37 x 28510 6.4237 1722 7.28 x 17 12 x 218.3732 2024 9.29 x 20 15 x 24.

Preto leva 24 e o jogo torna-seclssica. Mais tarde, o jogo pode tornar-se fechadoclssica.Se o preto quer um jogo moderno, ele pode escolher

1 17 22 2.4034 1117.

Se os negros querem uma srie de jogos, eles podem

tentar 1 2025 2.4034 1420 3.4540 1014

O sucesso imediato (19-24) possvel, mas raramentejogou.

4.3228 1721 5.3126 1924 6.26 x 1711 x 22 7.28 x 17 12 x 21

Esta posio trouxe muitas partes interessantes comoaqueles jogado por Gogiev - Sijbrands (1999), que discutido na Parte 2 deste curso.

Existem muitas oportunidades de abertura I. Weissdisse uma vez que qualquer abertura boa se fordevidamente continuou ....

65

Aberturas de ndice

1. 32-28

1.1) 1 ... 19-23 Variante de simetria

1.2 )orientao

1.3) Variante Roozenburg

1.4) Sacrifcio Drost

1.5) contra o sacrifcio Wiermsa1.6) System 7. 40-351.7) Variante Groninger1.8) Chizhov troca

2) 1 18 23 Abertura Chefneux2.1) Variante Fox 2.3329 23 x 32

3.37 x 28 20252.2) Variante moderna (3 1722 x 22)2.3) Highlander Variant (2.3832)

3) 1 17 22 2.28 x 17 11 x 22 variante Chogoliev

3.1) a abertura Korchov3.2) A Chizhov ataque

4)11722 2.28 x 17 12 x 21 manobra Schwarzman4.1) na verso de direita (3.3530)4.2) O 'vespa' (3.3126 712 4.26 x 17 12 x 21)

4.3) A Prosman ataque (4... 11 x 22)4.4) A variante primria (3.3732)4.5) Variante de cerco (3.3430)

5) 1... 1822 guia'' Variante5.1) Postos Variante mtuos (5.3430 2025)5.2) O'' preto'' rush (5.3430 2025)5.3) Roozenburg variante (5.3126 1923)5.4) encadeamento variante (5.3126 2025)

6) O pantera negra'''' 1... 16216.1) Variante bloqueando a ala direita (2.3126 1116)6.2) Russian variation (3.3832)6.3) Variante Holands (3.3732)6.4) Variante Andreiko (2... 1822)

7) O ourio (1... 1721)7.1) variao Schwarzman (5.3832)

8) O urso russo'''' (1... 2025)


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9) Cowboy (1... 2024)9.1) A vaca (2.3430 1420)9.2) Variante Semi-clssica (2... 1823)

10) 1. 33-29 O diamante10.1) Abertura Roozenburg (1... 1923 2.35302025)10.2) Abertura Keller (1... 1722)10.3) Ourio (1... 1721)10.4) Krajenbrink ataque (1 ... 16 - 21)

10.5) Resposta clssico (1... 2024)

6) O buffalo (1... 1822 2.3126 2024)

11) 1.33-28 Sijbrands de abertura

11.1) Old Dutch (1... 18 - 23)

11,2) qui moderna (1... 18 - 22)

11.1) A gaivota (1... 17 - 21)

12.) 34-29 Fork Abertura'' bloqueio'' (comerciante demadeira)

12.1) Abrir Chizhov (1... 19-23 ... 5. 29-24)

12.2) da forquilha de bloqueio'''' variante 1 (5. 31 - 26)

12.3) de bloqueio da forquilha variante'''' 2 (1... 20 - 25)

12.4) O pavo'''' (1 ... 17 - 22)

14. 34-30 Aberto da Frana (abertura francs)

14.1) A chita'''' (1... 20-25 2.30-24)

14.2) variante Ottink (1 ... 17 - 22)

15. 31-27 abertura polaco

15.1) abertura semi-clssica (1... 19-23 2.33-28 17-21)15.2) abertura ala esquerda (1 ... 17-21 2.27-31)

15.3) O grande salto (1... 17-22 2.36-31 22-28)

16. 31-26 O bordo de abertura

16.1) O bordo de abertura (1 ... 19 - 23)

16.2) A aresta da abertura rejeitada (1 ... 17-21 2,26 x17 11 x 22)

17. O cavalo selvagem 35-30

17.1) O cavalo selvagem (1. 35-30 20 - 25)

Uma viso geral das aberturas populares

Na maioria das vezes tocou para abrir o jogo 1. 32-28 , dandoportunidade a branca para desenvolver sua asa esquerdaimediatamente.

1. ABERTURA 32-28

Variante de simetria

Pela mesma razo, a resposta mais freqentemente realizapreto

1 19 23 2.28 x 19 14 x 23

A resposta simples, mas troca estratgica

3.3328 23 x 32 4.37 x 28 e ambos os jogadores podem desenvolver as suas posiesfacilmente, por exemplo:

4 10 14 5.3933 510

6.4439 1419 7.4137

Preto deve agora decidir que pretende seguir. Se eles querejogo clssico, eles j podem jogar (20-24)

Se os negros querem operar tranquilamentejoga 7

1014 8.4641 17 22 9.28 x 17 12 x 21pode ser escolhido.

Se os negros querem uma parte moderna, com possv

ataque Roozenburg, ou eles podem jogar aqui prximo

movimento 7 1621, for example:

7 16 21 8.3126 1822

9.3732 1116 10.4641 91411.4137 39

Em tais situaes, os brancos so muitas vezes joga 12.2823 19 x 28 13.32 x 23.


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se 12. 3429 peas pretas 2024 29x20 15x24 e maistarde 2127 32x21 16x27 que d um jogo de ataqueRoozenburg

. Realizao de costumeGeralmente 1.3228 1923 2.28 x 19 14 x 23 respondida

3.3732 1014E os brancos, h vrias maneiras de jogar de acordo com assuas preferncias.

Se os brancos querem um jogo muito moderno, que podejogar 4.3530 ou 4.4137 510 5.3530Roozenburg esperando depois de um ataque

2025 3329. Habitualmente, peas brancas

4.4137 510 5.4641 1419e depois continuar como antes.

Eles tambm podem jogar o popular

5.3530 ou 5.3429 23 x 34 6.39 x 30.

1.3) Variante Roozenburg

O tiro o mais popular 6.3530e depois 2025 tanto7.3329 e 7.4035 Se jogados branco quer um

ataque Roozenburg 7.3329, por exemplo.

7. 33291014 8. 4035 17229. 3127 22 x 31 10 .36 x 27 111711. 4540 611 12. 3024 19 x 30

13.35 x 24 1420Esta posio Roozenburg surgiu em

muitos jogos.Brancos no tenho medo2530Para depois 34 x 14 23 x 45 1410 branco ganha.

As coisas so diferentes, se joga brancos: 9.45 40?!(em vez de 9.3127) 1420 10.3024? 19 x30 11.35 x 24 agora 2530! 12.34 x 14 23 x45 13.1410 914! 14.10 x 19 2228 15.32x 23 18 x 20 preto ganha uma pea.

Desde a ltima posio (ver figura)

Branco para jogar normalmente

14.3833 1721 15.4238 212616.4136

Evitar o tiro ao rei 1621 2631 131917 x 46.

16 11 17 17. 4842 16

Se preto joga 410 ou 1721 o normal

18.5045 bom exemplo 17 4 1018.5045 1721 19.3328 16 20.28 x 191822 21.27 x 18 12 x 14 com a ala direitaataque para branco. Veremosna segunda parte docurso

the game Sijbrands Gantwarg(1973) from this opening was shown.

Mas se peas pretas 17 1 6! Brancas devem jogar8.4035!A razo que 18.5045 611 19.3328 410

20.28 x 19 914 21.3833 14 x 2322.3328 26 31 23.37 x 26 1319

24.24 x 22 39 25.29 x 18 12 x 23 26.28 x 19


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29.4742 48 x 37 30.31 x 42 71231.4238 913 no to agradvel parabranco, ele pode apenas esperar por um empate.

jogar 22.3631 1014! Fica pior. 23.3328? punido 1419 24.4035 19 x 3025.35 x 24 1722! 26.28 x 6 2328

27.32 x 23 711 28.6 x 17 12 x 41 etc. B+.

A famosa pea-Kuyken Wiersma (1973) tambmmostra que, depois de 23.4338 1419

24.4035 19 x 30 25.35 x 24 1721

26.33281217 27.28 x 19 1823

28.29 x 9 20 x 40 29.45 x 34 3 x 23

Pretas tem um bom jogo

Desde da ala esquerda branco esta bloqueado

Prosseguir aps a abertura 40-35:

19.4035! 611 20.3328

Se branco tinha jogado 5045 (em vez 4035)

antes de negros poderia jogar 2631 neste casocom 19.4035! jogado) 20 2631 no bomnegros deve, ento, jogar 410 deixando um golpecontra 21.37 x 26 1319 22.24 x 22 41023.28 x 19 17 x 48 24.1914 10 x 1925.2924 20 x 40 26.3934c48 x 30 27.35 x 4 W+.

Continuando o incio

20410

21.28 x 19 914 22.3631 14 x 23

Branco pode continuar com 23.38-33 com um jogo oujogar muito incisivo

23.2722 18 x 36 24.29 x 9 20 x 4025.94

No Sijbrands-Gantwarg (1990), na um desconto.

25.427 1116 26.5045 39 27.27 x 4

2127 28.32 x 21 16 x 27 29.45 x 34 10 - 14

30 4 x 31 36 x 27 31 34 29 8 13

claro que existem muitas variaes mais, masestes afiada linhas wil lhe dar uma idia do quepode acontecer neste sistema Roozenburg.

O tempo 8, Springer-ataque 8 23 28

9.32 x 23 19 x 28 tambm uma popular continuao

1.3) Variante Drost

No incio do Roozenburg variante, preto pode escolher pararesponder ao ataque, executando o gambit Roozenburg Dros

6.3530 2025 7.3329 1722Os negros no jogar 1014que manter o quarto em e no enviar para porque melhor para jogar o Drost j

. 8.4035 1117 9.3127 22 x 3110.36 x 27 6 11 11.4540 172112.3833 2126 13.4338 111714.3024 19 x 30 15.35 x 24 1721

16.4137 1217

Esta posio da chave pode ser obtida com uma srie demovimentos diferentes. Blacks 17.33-28 que conhecer um cataque contra 27.

17.3328 712 18. 28 x 19 1722

Defesa ortodoxa para os brancos de 19.393322 x 3120.36 x 27 1217 21.4741 27 22.4439 172223.4137 22 x 31 24.26 x 27 711.

Branco no pode jogar porque 33 28 por causa 1520 B+. por isso que os negros no eram !

Agora ou mais tarde, fazer o peo branco 191410 x 30 2923 18 x 29 33 x 35 =. Se os brancos jogarimediatamente como aqui, 16! 3933 1318) e os brancos devem continuamente prestar ateno 263eles jogam 3328 so negros2631 37 x 17 11 x 31E o pea pode ser trocado.


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A melhor defesa chamado de :

1.4) contra o sacrifcio Wiersma

19.4035! 22 x 31 20.26 x 27 121721.2722! 18 x 27 22.2923

Se Branca mantm o pino geralmente bompara os negros. idia jogar branco e 3933 para3430 2420 para trocar um ataque sim mantercentrado

221722 23.3933 2731ameaando 2228 2127.

24.3228 3136Aqui, ela tambm foi tocada24 13 18 25.23 x 12 8 x 17 (See Wiersma

Georgiev (1995) in the appendix) and 24 9 1425.28 x 17 21 x 12 26.2318 12 x 2327.19 x 28 are also played.

25.28 x 17 21 x 12 26.3430 25 x 3427.2420 15 x 24 28.19 x 39

A posio aproximadamente igual: Branco tem umataque no centro e os negros tm a sua quadra dedefesa intactos

1.5) Counterattack Springer

A partir do diagrama do Roozenburg ataque, Blacktambm podem desempenhar

6.3530 2025 7.3329 10148.4641 2328 9.32 x 23 19 x 28

Aqui, se 10.4540 muito lento. negros obter a

vantagem 10 1621! 11.3126 172212.26 x 17 12 x 21

Voltar para o Jogo

10.3127 1721 11.3731 21 x 3212.38 x 27 1822 13.27 x 18 13 x 22

Os negros devem ter em conta a potencial ameaa 332830 x 10 eles no querem jogar 1420 ou1419para lutar contra a ala direita branca.Jogar1420 ) d a possibilidade de a capacidade de brancodesenvolver a sua ala direita 4238 4540 5045(ou494439) e, posteriormente2924 x 23 x 29,

depois de 14

19 branco pode trocar o pino 24 por continuodesenvolver o pino 35 parte Traor -. Gantwarg (1980) no apmostra uma bela cercando realizada por negros de abertura pouco diferente, os negros no fazer contra o atacante at9 17 22 10.3127 22 x 31 11.36 x 2736 foi jogado.

Preto tambm pode jogar de maneira diferente contra o ataqSpringer

6.3530 2025 7.3329 9148.4035 39 9.4540 2328

10.32 x 23 19 x 28

Branco pode escolher entre 11.3933 28 x 3912.44 x 33, 11.3833 and 11.3024.

Se11.5045? golpe Isto pode ser combatido por1621! 12.3126 212713.3024

13.3731? 28 33 & 17 21 B+1.13.3833 2732 14.33 x 22 18 x 27 15.37 x 28 1721 B+

13.3832 27 x 38 14.43 x 23 1319 da pretos uma van

13 2833! 14.39 x 28 1419 15.4339 19 x 3016.35 x 24 2731 17.36 x 27 152018.24 x 15 2530 19.34 x 25 1722 20.28 x 17 12 x 23Pociso melhor para preto

System with 7.4035

Se joga brancos aps (6.3530 2025) 7.4035

Outro jogo seguinte forma:

Linha a mais incisiva 8 1520 9.4440 202410.5044 1721 11.3126 212712.32 x 2116 x 27 13.3328 23 x 3214.37 x 28 111715.2823 19 x 2816.30 x 19 13 x 24 17.3430 25 x 3418 40 x 20


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um jogo emocionante em que os brancos devem jogarcontra os postos avanados de ataque preto 27 e 28.

10 10 14 atendida por 11.3429 23 x 3412.40 x 20 25 x 34 13.39 x 30 14 x 34 e brancopode escolher 14.4439 mas permite 162126, eles tambm podem jogar primeiro 14.3127?!ou 15.3227(!)e depois recuperar o peo.Abordagem mais tranquila:

Groninger variation

O nome desta variao vem do nome da capital daprovncia holandesa de Groningen. Nos anos 70 e 80,as damas so jogadores muito populares e muito forteGroningen explorados esta variante.

6.3228 23 x 32 7.37 x 28dando a iniciativa aos negros. agora podeconsiderar um Roozenburg ataque.7 16 21 8.3126 1822 9.4237

Os negros devem ter cuidado para no deixar que umasenhora ir por 9 1116? 10.3329 22 x 3111.36 x 27 21 x 32 12.2924 13.34 x 5 W+.negros deve tapar o buraco 14.

Voltar para o Jogo

9 9 14 10.3732 1116

11.4137 39 12.4842 711Em vez de (07-11) 12...611 is tambm muitas

vezes jogado, mas 711 melhorWhite can launch the Branco pode realizar um novoataque contra Springer jogando 2823 19 x 23 32x23,mas 2024 d uma boa posio para Preto.

Se branco joga13.3429 2024 14.29 x 20 15 x 24 15.4034 2116.32 x 21 16 x 27 Preto tem o ataque Roozenburgdesejado.

.

A troca ChizovEmvez de 5.4641 , os brancos so freqentemente

27

70

5.3429 23 x 34 6.39 x 30Chizhov popularizaram esta suite. negros Se quiser um conjuclssico, eles podem optar por 6 2024 7.30 x 19 13 principalmente, peas pretas

6 14 19 7.4439 1014 8.4034

Depois de2025 os brancos ataque 3024 19 x 30 35O resultado o mais comum 8 1823mas1722 e1621 tambm so populares.

8 18 23 9.4540 1218

10.4641 712 11.3228 23 x 3212.37 x 28 17 13.5045 172214.28 x 17 11 x 22 15.3025 1621

16.3126 2127 17.413717.3430 pode ser jogado como no Chizhov -. Wesselink vamos mostrar essa parte do apndice o Chizhov belo jog

contra o pino 36

Acima de 13 vez, se joga passivamente Preto13 1721 14.4137 2126Branco pode tentar colocar presso sobre os negros atravs construo de um bloco slido, consulte parte Chizhov - Ber(2002), no apndice.

Volte para a posio.

Esta posio encontrado pelo menos 40 vezes. A maioria djogadores esto jogando a 36:


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17 27 31 18.36 x 27 22 x 31com uma emocionante jogo. negros tambm podetentar manter o ataque pela ala direita 17 1923.

Abertura 1.32 28 1923 tem sido amplamenteabordado no livro escrito por'' Baliakin e Gantwarg:1.3228 1923 12 systems.The bookwith English text - can be bought atthe office of the Dutch draughts [email protected]

Overture Chefneux

A segunda resposta mais popular de 1.3228 1823. negros curso no pode jogar 2.3732por acidente vascular cerebral 23 29 B+2 melhor2.3329 and 2.3832.

The Fox

1.3228 1823 2.3329 23 x 32

3.37 x 28

If white plays 2.3429 23 x 32 3.37 x 28 blackcan play 1218, but after 2.3329 the moveis prohibited!Black can go in several directionsdependingon his desired strategy. If black wants amodern game, playing against a right wingattack he can play the popular 2025 enteringthe Fox. This opening is called after Dutchdraughts player J.H. Vos. Since vos means

foxin Dutch, we cal this opening The Fox.3 20 25 4.4137 1218

4 17 21 can give an exciting gameespecial y if white al ows black to create a forklock without piece at : 5.3933 1520

1) 6.4439 1924 7.3732 21 26 8.5044 26 x 37 9.42 x 31 14 19 etc. wit excitingplay, see Holstvoogd Sijbrands in theappendix.

2) 6.3732 1924 7.4641 21 26 8.4137 14 19 9.4439 1621 10.5044 1014 11.31 27 11 16 and in thisfascinatingposition 12.2923! wil result in an interestingfight. A fascinating variation is: 12 7 11

Eliminating the 34 30 x 30 change by a

kingshot.

13.3429 510 14.4034 1217 15.2722! 812 16.2318! 12 x 23 17.29 x 18 andthe outpost at gives shape to anunorthodox game!

5.3732White can attack immediately 5.29 24 20 x29 6.35 x 24. This Fox is played frequently bymasters and grandmasters against weaker

opponents to complicate the game and playagainst the right wing attack. Players likeBaljakin, Schwarzman and Gantwarg love toplay the Fox and have gained good results andplayed several beautiful games with it.

5 16 21

The other important move is the ordinary 5 712. White has to make a choice:

1) 6.2924 19 x 30 7.35 x 24 with right wingattack.

2) 6.39 33 19 23 7.28 x 19 14 x 23 aform many variations we show:8.4439 1014 9.5044 1419 10.4641510 11.4237 1520 12.3228 23 x 3213.37 x 28 1923 14.28 x 19 13 x 24 15.3530 24 x 35 16.2923 18 x 29 17.33 x 15 withan interesting play with the edge piece at.

3) 6.4641 17 7.4137 1721 8.39332126 9.4339! 11179 19 23 10.28 x 19 14 x 23 11.33 28 is

not so attractive for black.10.29 24! 19 x 30 11.35 x 24 with a goodright wing attack, in Sijbrands Gantwarg(1995) followed 11 7 11 12.3127 172113.3429 1420 14.3731 26 x 37 15.42 x31 2126 16.4742 26 x 37 17.42 x 31 1117 18.40 34 17 22 19.28 x 17 12 x 220.4540 2126 21.3328 26 x 37 22.32 x41 1014 23.2923 20 x 29 24.23 x 12 20 x29 25.34 x 23 with a strong centre attack forwhite.

6.2924 19 x 30 7.35 x 24If white doesnt want to go to so early, he

can play 6.3933 2126 7.4439 26 x 378.42 x 31 1923 9.28 x 19 14 x 23.

711167 21 26 8.3933 26 x 37 9.42 x 31 7129 14 19 can be met by 10.4439 19 x 30and instead of 11.2823 18 x 29 12.33 x 35with equality white can play 11.4035 tryingto keep his attack.

10.4641
mailto:[email protected]:[email protected]:[email protected]:[email protected]


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After 10.44 39 17 21 11.46 41? ispunished by 13 19 24 x 22 21 27 32 x 21

1117 22 x 11 6 x 4610 17 21 11.41 37 21 26 12.47 42with a sound attack for white.

8.4641 712 9.4137 1710.3933In this position black has tried al kind ofcontinuations. We show one variations inwhich white is trapped.

10 21 26 11.443911.43 39 can be played trying to get the

position from SijbrandsGantwarg.

11 7 11 12.50 44 1721 13.3127 1420 14.3429?! 1217 15.3731? 26 x 3716.42 x 31

White should play 15.2823 but 812 16.3328 914 17.3933 38 18.3731 26 x37 19.42 x 31 17 21 20.48 42 21 2621.4237 1419 22.23 x 14 10 x 30 23.29 23 18 x 29 24.33 x 35 49! (threatening 16-21) 25.2722 * stil leads to a better position

for black.

16 18 23!! 17.28 x 19 2126 and since 3328 is punished by 26 x 37 32 x 41 2530!B+ white is lost.

After 1.3228 1823 2.3329 23 x 32 3.37x 28 black has more options of course.If he wants a classical game he can play 32024 4.29 x 20 15 x 24.If black wants a modern game he can play

Modern variation

3 17 22 4.28 x 17 11 x 22 5.39 33

5.41 37 allows 16 21 6.31 26 20 247.26 x 28 24 x 22 with an easy game for black.

5 13 18 6.4439 1923

If black wants a right wing attack he can try 6

913 7.4137 1621 8.3126 2127.

7.3530The sharpest move. White can play 7.413714 19 8.29 24 20 x 29 9.33 x 13 8 x 110.3732 1014 11.3227 with a semi-fork.However blacks strong centre compensatesmore than enough for this, as the G. JansenSijbrands game of 1988 proved. Sijbrandsbegan to build his centre activating piece 2with 2813. See the section about strategyfor this game.

714197 20 25 is met by 8.3024! 1420 and to

stop the plan 813 28 followed by an attackat white plays 9.38 32! a moveintroduced by the author of this course. Manyopponents (also pupils of mine) have becomevictim to the shot 813? 11.3228! 23 x 3212.3430 25 x 23 13.4137 20 x 38 14.37 x28 W+1.If black plays 9 13 the outpost is safe awhite can transfer the position to a right wingattack or a Roozenburg attack.

8.4035 813 9.4137Black can now play 16 21, but most of thetime he goes on with 9 6 11 after whichwhite can build the 46 / 41 / 37 tail in order tochange to . If black plays 10 14 whitecan consider to play 30 25 blocking blacksleft wing.

The Highlander

1.3228 1823 2.3832is a more classical way to play for white. Animportant position is reached after

2 12 18 3.3127 7124.4338 2024

The Molimard-variation gets shape after 4 1721 5.3731 (or 5.4943) 2329 6.34 x 2318 x 29 7.33 x 24 20 x 29. More information atFrits Luteijnswebsite:http://home.kpn.nl/dammen/molimard/

5.3731 1420 6.4943 101462 7 would give white the extra

opportunity 27 22 x 22! After 6 10
http://home.kpn.nl/dammen/molimard/http://home.kpn.nl/dammen/molimard/http://home.kpn.nl/dammen/molimard/http://home.kpn.nl/dammen/molimard/


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7.2722 18 x 27 8.31 x 22 would cost a piecebecause of 2329 2430 B+1.

7.4137 17 8.4641 5109.3429 23 x 34 10.40 x 29 20 25

11.29 x 20 15 x 24

The most interesting move in this position thathas emerged on the board hundreds of times,is 12.27 22 18 x 27 13.3 x 22 launching aHighland attack. This opening is thus logical ycalled the Highland variation or Highlander.With piece 50 at this move wouldnt be

possible because of the 1923 kingshot.

12.2722 18 x 27 13.31 x 22 16 21White cant go 14.3631? because of 242933 x 24 19 x 30 35 x 24 13 19 24 x 13 9 x 36

B+1. He should go to first and then play3631. Instead of 14.4440 the more central454034 is also possible.

14.4440We show two important variations.

1) 14 21 26 15.4034 1721 16.36311116 17.3127 1218 18.4540

White can also choose 3430 x 30.

18 18 23 19.5045 2430 20.35 x 24 19x 30 21.28 x 19 14 x 23

Whites play is severely restricted for a couple

of moves. 22.40 35? is punished by a

kingshot: 1014 35 x 24 2329 34 x 23 2631 37 x 17 1319 24 x 13 8 x 46 B+.

22.3429 23 x 34 23.40 x 29 711Prohibiting 3328? by 2631 1318 B+24.41 36 10 14 25.36 31 with aninteresting fight. Black wants to exploit the arclock while white hopes his strong centre wilgive him the odds. See the Baliakin Mogiljanski game (1987) in the appendix.

2) 14 10 15 15.4034 1420 16.44401621 17.3631 1721 18.413618.3127? isnt good because of the 12 1727 x 16 2631 37 x 26 1923 28 x 30 17 x46 kingshot.

Now 18 7 11 or 18 12 18 is played witha complicated game that should be studied

seriously. The nice F. de Koning Thijssengame (2010) is shown in the appendix. GMIKees Thijssen is a specialist in this Highlandopening.

Chogoliev-variation

1.3228 1722 2.28 x 17 11 x 22This opening is a good choice for black playerswho want an active modern game. Fascinatinggames emerge after the Korchow-variation:3.3732 1217?! 4.3126 611 4.3631

812 5.3227White is threatening to play 41 36 with astrong fork lock, so black plays the logical5 16 21 6.27 x 16 2228 7.33 x 22 18 x36Thousands of draughts lovers have played thisopening. The edge pieces make this type ofgame very attractive.Frits Luteijns website gives much moreinformation about this so-called Korchow-opening:http://home.kpn.nl/dammen/Korchow/index.htm

3.3732 611 4.4137 12175.4641

The alternative 5.34 30 7 12 6.3025aims at playing against an right wing or centreattack, for example: 6 16 7.46 41 1923 8.3530 1319 9.4035 913 10.4540 49 11.3126 27 12.5045 and blackattacks playing 2227, 2228 or 2328.

The Chizhov-attack

5 8 12
http://home.kpn.nl/dammen/Korchow/index.htmhttp://home.kpn.nl/dammen/Korchow/index.htmhttp://home.kpn.nl/dammen/Korchow/index.htmhttp://home.kpn.nl/dammen/Korchow/index.htm


11/44

Both 712 and 16 are played also.

1) 5 7 12 6.3429Another option is 6.3127 22 x 31 7.36 x 27and 6.3228 1923 7.28 x 19 14 x 23 8.3429 23 x 34 9.40 x 29 10 14 10.3530 2025 11.3024.6 1923 7.40347.3127 22 x 31 8.36 x 27 23 x 34 9.39 x 30for maneuvering play 9 20 25 is met by

10.4439 25 x 34 11.40 x 29!7 14 19 8.4540 10 14 9.3228 23 x32 10.37 x 28 510 and black takes back thecentre changing 1923 x 23 at the next moveor prepares this exchange with the sharp 11

1621.

2) 5 1 6 6.3429 1923 7.4034 1419 8.4540 812 9.3228 23 x 32 10.37 x

28 2024 11.29 x 20 15 x 24 12.4137 1621 13.31 26 11 16 with aRoozenburggame.

Whites most popular replies are 6.35 30 (20 25 7.32 28), 6.34 29 and ourpersonalfavorite:

6.3228 1621 7.3126 21278.3530 28 9.3025

Black can go to changing 27 31x 31but can also maintain his attack in spite of theweakness at . This is the way Chizhov likesto play. This opening generated manyinteresting games in which white has to playagainst blacks right wing attack.

9 19 23 10.28 x 19 14 x 23

11.25 x 14 10 x 19

Black can also play even more sharp: 10 1 6 11.37 31 and only then change 19 23.

Chizhov played this way several times.

12.3430

74

This is the most radical move. More safe playgives 12.3429 23 x 34 13.40 x 29 or 13.39 x30.

12 5 10 13.4034 152014.3025 1015 15.25 x 14 9 x 20

With a fascinating fight in which white playsagainst the right wing attack.

Schwarzman maneuvering-opening

Baliakin was confronted with this opening inthe match from 1995 against Schwarzman. Inhis book Schwarzmanie (Schwarzmania) heproposed to name this continuation theSchwarzman-opening.

1.3228 1722 2.28 x 17 12 x 21The exchange is played by many strongplayers who like to maneuver first before thegame gets concrete. White can respond inmany ways, the sharpest of which is

Right wing continuation

3.3530 2025 4.40354.3329 is interesting too.

4 15 20 5.4540 20246.3329 23 x 34 7.39 x 28

If black doesnt want to playagainst the attackvia 4439 followed by 3024 x 24 he cananswer like Schwarzman played againstProsman (2004):

7 11 17! 8.4439 1822 9.3833

Prosman played 9.4944 22 x 33 10.39 x 28and never managed to get a sound attack.

9 1420 10.5045Its not a wrong idea to allow being locked:10.3732 2024 11.3127 22 x 31 12.36 x27

10 2024


12/44

In M. Kroesbergen J. Lemmen 2006 whiteplayed a double pseudo sacrifice after whichblack went terribly wrong: 11.2823?! 19 x 2812.30 x 19 13 x 24 13.31 27 21 x 32 14.4238 611 15.38 x 18 813??Black should play 15 8 12 16.33 x 22 12 x

23 17.47 42 17 x 28 18.34 30 25 x 3419.40 x 18 =16.33 x 22 17 x 28 17.4944! 13 x 22 18.3429 24 x 33 19.37 32 28 x 37 20.39 x 6 andwith a piece more white won the game.

The wasp

A more quiet approach for white is:

3.3126 712 4.28 x 17 12 x 215.3731

With the intention to take back . If white

plays 5.36 31 the smart 19 23 stops theplan to take .

527 6.3127 21 x 32 7.38 x 271117 8.4338 1923 9.4943

1721!At this moment white has no neutral move tomake the change. He should play either 36

31 or 3430.

10.3631 21 x 32 11.38 x 27 23 2812.33 x 22 1621 13.27 x 16 18 x 36

And piece guarantees an interestinggame. Chizhov won a strong game againstSchwarzman during the world championship2003 (see appendix).

The Prosman-attack

Black can also go to after 3.3126, likeGMI Erno Prosman likes to play.

3.3126 712 4.26 x 17 11 x 225.3731 1621 6.3126 2227

7.26 x 17 12 x 21

Many games have been played in recent yearswith this system.

The main line

3.3732 712 4.3429 17Black can play 4 11 17 5.4034 6116.3126 16 7.4540 1923 8.4237 1419 9.4842 1014 10.5045 510 11.3731 27 12.4137 2025 13.4641 1520 14.3530

In this well-known theoretical position black

cant delay going to any longer. 14 1015 isnt possible because of 30 24 3227W+.

14 21 27 15.31 x 22 17 x 28 16.33 x 22 18x 27 17.32 x 21 16 x 27 18.29 x 18 13 x 22

Its also possible to take 18 12 x 23 19.37

32 2024 20.27 x 16 24 x 35 and black holdsthe centre.

19.3732 1117 20.32 x 21 2024 21.4137 24 x 35 etc.

5.4034 1923 6.4540White can choose to play a classical game:6.4137 1419 7.3328 and later black wilprobably change 2024 x 24, for example: 21

26 8.3933 1117 9.4439 2024 10.29x 20 15 x 24.

6 1419 7.4237Not al owing the chain lock with 1924.

7 10 14 8.5045 510


13/44

9.31269.4742 1117 10.3126 711 11.373127 12.4641 2025 13.3530 leads to aposition weve seen before9.47 42 2126 10.3228 23 x 32 11.37 x

28 26 x 37 12.41 x 32 1923 13.28 x 19 14 x23 can get interesting after 14.35 30 202515.3024.

9 21 27 10.32 x 21 16 x 27

9 20 25 10.26 x 17 11 x 22 gives white aneasy right wing attack after 11.32 28 23 x 3212.37 x 17 12 x 21 13.2924 19 x 30 14.35 x24.

11.4842 2025 12.3731 121713.31 x 22 17 x 28 14.33 x 22 18 x 27

15.29 x 18 13 x 22

Black has a right wing attack, but it is not sostrong since white can change piece easily.

Surrounding variation

A recent development in this opening is

3.3430 712 4.3025White wants to play against the black centre.

He could be playing against a right wing attacklater.A variation that is frequently played

4 11 17 5.3126 611

6.4034 16 7.4540 19238.3530 1419

8 13 19 9.4035 913 10.4440 4911.5045 27 12.3731 1822 13.312722 x 31 14.26 x 37 is also played after which

black continues 14 17 22 like the

Schwarzman Chizhov game (1998) in theappendix or 14 12 18 15.37 31 7 1216.3126 2127 17.4137 1721 18.26 x

17 11 x 22 19.37 31 with white playingagainst the right wing attack.

9.25 x 14 9 x 20 10.3025 4 911.25 x 14 9 x 20 12.3731 101413.4137 5 10 14.4641 2715.3832 2127 16.32 x 21 16 x 2717.31 x 22 18 x 27 18.3430 2024

19.3025

Black has a right wing attack but a weak leftwing.

The eagle

1.3228 1822 2.3732 12183.4137

White can switch to another modern opening

by playing 3429 here or at the next move.712 4.4641 17

White can choose from 3 popular moves:

Mutual outposts variation

1) 5.3429 1923 6.28 x 19 14 x 347.40 x 29

7.39 x 30 leads to maneuvering before thegame gets more concrete.

7 10 14 8.3530 2025

9.3024 1420Andreiko Sijbrands (1969) was 9 5 1010.2420? 15 x 24 11.29 x 20 1015 12.45

40 15 x 24 13.3328 22 x 33 14.38 x 20 16 21! 15.31 26 11 16 16.36 311117.2015White couldnt play 17.3127 because of 410! 18.2015 1823! 19.15 x 4 1318 20.4

x 22 17 x 28 21.26 x 17 11 x 31 22.37 x 26 28

x 46 B+.17 1822 18.4136 2228 19.32 x 23 21

27 20.31 x 22 17 x 19 with a good game for


14/44

10.3228White can also try 10.44 40 5 1011.50 44 914 12.3127 22 x 31 13.36 x 27 17

2213 3 9 14.2923! 18 x 29 15.2722 17 x28 16.32 x 34 20 x 29 17.34 x 23 gives white a

solid centre attack.

14.3731 39 15.4237 1419 16.413619 x 30 17.2923 18 x 29 18.33 x 35 222819.32 x 23 2530 20.35 x 24 20 x 18 with anequal position.

10 16 21 11.3126 1116 12.3732

2127 13.32 x 21 16 x 27

White has to watch some shots.

1) 4137? 27 32! 38 x 27 22 x 31 36 x 271722 28 x 17 12 x 41 47 x 36 1823 29 x18 20 x 47 B+.2) 42 37? 1823! 28 x 19 27 32 38 x 1812 x 34 39 x 30 20 x 38 43 x 32 13 x 35 B+1.3) 38 32? 27 x 38 43 x 32 1721! 26 x 1712 x 21 28 x 26 1823 29 x 18 20 x 27 B+1.

14.4540

44.45 40 isnt wrong for after 18 23 whitetakes 29 x 18 12 x 32 3328! 20 x 29 28 x 37812 3732 winning back the piece with a

good game for white.14 5 10 15.5045

After 15.39 34?! 914?! white can play thesurprising move 16.40 35! after which 14 19 is met by the kingshot 17.3832! 19 x 3918.43 x 34 27 x 38 19.2621 17 x 26 20.28 x17 12 x 21 21.2924 20 x 40 22.5045 42 x33 23.45 x 1 and white can hide his kingbehind his own pieces: 1014 3530 25 x 341x45 followed by 4550.

After 15 9 14 16.4035 39 17.44 40

14 19? Is even worse, white can take akingshot with both 18.3832 and 18.3631!W+, while 17 18 23? 18.28 x 19 14 x

x 45 3329 23 x 34 4137 20 x 29 38 3329 x 38 43 x 5. Therefore black has to play 13

19 x 19 at the 16thor 17thmove.After 15.39 34 10 14 16.40 35 14 1917.3832 etc. the king is caught by 23 21 27 24.4137 812 25.1 x 31 1318 26.31 x

13 9 x 18 =.15914

16.3832 27 x 38 17.43 x 32Now is opened white can play this move.Another possibility is 16.4237 2732 17.38x 27 22 x 42 18.47 x 38 39 19.4137 1823 20.28 x 19 14 x 34 21.39 x 30!

Preventing the problems that arise after 21.40

x 29? 10 14 22.44 40 1419 23.40 35

19 x 30 24.35 x 24 9 14 25.45 40 41026.4944 1218! (threatening 1721 81214 x 45 B+) 27.3934 712 28.43 39 1419 and after changing back whites right wingis ugly.

21 25 x 34 22.40 x 29 1014 23.4440Whites outpost is completely safe now, 14 19 is punished by 3328 19 x 30 2822 17 x28 3833 28 x 39 43 x 5 W+.

17 4 9?!

17 14 19 18.4035 19 x 30 19.35 x 24 17 21 20.26 x 17 22 x 11 21.42 38 10 22.4440 1822 23.28 x 17 11 x 22 followed

by an attack at has also been tried, seeGantwargWiersma in the appendix.4 9 is a move introduced by former worldchampion late Jannes van der Wal. After theforced reply of white black takes a deepkingshot, getting a king for three pieces.

18.4238

18 22 27! 19.32 x 21 253020.24 x 35 1823 21.29 x 18 12 x 3422.21 x 1 2025 23.40 x 29 131824. 1 x 23 2530 25.35 x 24 1520

26.24 x 13 8 x 50


15/44

Black can get his king behind his pieces

andhas the odds. See L. Thijssen B. Terwel(1996) in the appendix.

The black rush

2) 5.3430 2025 6.3024 19 x 307.35 x 24 1420 8.3329

White can also play 8.39 34 20 x 29 9.34 x23 18 x 29 10.33 x 24 22 x 33 11.38 x 29 witha right wing attack.

8 22 x 33 9.39 x 28

9 18 22

9.. 17 21 is another frequently played

variation. After 10.29 23 20 x 29 (black cantake otherwise too) 11.23 x 34 21 26whitecontrols the centre but also a weak piece at. See the nice Gantwarg Wirny(1983)game in the appendix.

10.3833 1014Black can play the 1318 913 2227scheme as an alternative.

11.423811.43 39 can also be played, but allows 22

13 17.3934 17 x 28 18.34 x 32 with an equalposition).11.4439? would give up a defender of piece24, while black is aiming to attack the outpostseveral times.

11 5 10

After 11 16 21 12.3126 1116 13.4439! Is possible, with the idea of 1419 14.4035 19 x 30 15.35 x 24 711 16.3934! 914 17.4339 and 1419 is met by 2823!19 x 28* 32 x 23 +/- like in Sijbrands J. dJonge (blindfoldgame 1981).

12.4742 1419 13.4035 19 x 3014.35 x 24 1014 15.4440 141916.4035 19 x 30 17.35 x 24 9 14

18.4540 39The best way to defend piece 24 against theblack rush is to keep piece 50 at its spot. After19.5045? 1419 20.4035 19 x 30 21.35x 24 914 22.4540 1419 23.4035 19 x30 24.35 x 24 49 25.4944 914 26.4440 14 19 white cant play 32 27? 19 x 3027 x 9 813 9 x 18 12 x 45, so he must allow27.4035 19 x 30 28.35 x 24 2227 29.31 x22 1318 30.22 x 13 8 x 30 and whites rightwing isnt defended wel .

19.4944 1419 20.4035 19 x 3021.35 x 24 914 22.4339 4 923.4440 1419 24.4035 19 x 30

25.35 x 24 914 26.4843!

Now 1419 can be met by 3227 19 x 30 27x 9 813 9 x 18 12 x 34 3732 stopping therush attack at whitesright wing.Changing 26 22 27 27.31 x 22 13 1828.22 x 13 8 x 30 gives white control over thecentre.

3)5.3126

We have to consider two completely differentlines.

Roozenburg-variation

3.1) 51923 6.28 x 19 14 x 237.3228 23 x 32 8.37 x 28

8.33 28 22 x 33 9.39 x 19 13 x 24 has nopoint for white, since black builds the cannonplaying 1014 913 510 1419 10 14(49).After 5.3429 23 x 34 6.40 x 29 black simply

takes a right wing attack with 2227 x 27.


16/44

8 16 21 9.4137Another plan is trying to block the Roozenburgattack playing 9.3832 1116 10.4137 21

27 11.32 x 21 16 x 27 12.3731 101412 1319? Is punished by 13.2621 W+.13.43 38 5 10 14.49 43 trying toattack.

9 21 27 6.3731 2024Black now has a sound Roozenburg attack.Usually white is going to attack immediately playing 47413732.

Fork-lock-variation

3.2) 5 20 25 6.3731 1420

7.4137 1014 8.4741 5 109.3227 1923 10.28 x 19 14 x 2311.3430 25 x 34 12.40 x 29 23 x 3413.39 x 30 2025 14.4439 25 x 34

15.39 x 30 1014

From this interesting fork-lock position many

games have been played.

The black panther

1.3228 16211 16 21 is by far the sharpest reply to 1.32 28, inviting white to lock blacks right wingplaying 2.31 26. Sometimes black evenkeeps the lock on the board deliberately tocomplicate the game:

Right wing lock variation

1) 2 11 16 3.3732 711 4.3631!4.4137 is met by 1923 5.28 x 19 14 x 23

and white cant keep the lock. Black wants to

play 21 27 x 27 at the next move with a

sound right wing attack.

4 19 23 5.28 x 19 14 x 23 6.3328!6.3127? 2328 7.32 x 23 21 x 32 8.38 x 2718 x 38 9.43 x 32 favors black.

Black can also choose 13 19 (Dibman-variation) or the Clerc variation 2127 7.31

x 22 18 x 27 8.28 x 19 13 x 24 9.32 x 21 16 x

27

7.28 x 19 14 x 23 8.31 27 with a right winglock for black.

Russian variation

2) 2 11 16 3.3832 711 4.3731 1923 5.28 x 19 14 x 23 6.3127 2328 7.32 x23 18 x 38 8.43 x 32 with again a right winglock.

Black can also play other kinds of systems like3.3832 1822 4.4338:

1) 4 711 5.4943 17 6.3731 21277.32 x 21 16 x 27 8.4237 1116 9.3732

1621 10.4137 2024 and black plays thefascinating Partie Bonnard in the so-cal edValkenburg-variation.. Many games continue11.4742 1318 12.2823 18 x 29 13.34 x23 18 x 28 14.32 x 23 711 15.4641 1419 16.23 x 14 10 x 19 with an open Bonnard.

2) 4 13 18 5.4943 913 6.3731 2127 7.32 x 21 16 x 27 8.4237 1923 9.28 x19 14 x 23 with a right wing attack for black.

The opening 1.32 28 16 21 is extensivelcovered in a book by L.J. Koops.

Dutch variation

2.3126 1822 3.3732 11164.4137 711 5.3429 1 7

6.4641White can also choose to play against a rightwing attack with 6.40 34 13 18 7.45 41923 8.28 x 19 14 x 23 9.4641 212710.32 x 21 16 x 27 11.2924 20 x 29 12.33 x24. A nice example is the GerritsenDomchev(2010) game in the appendix.

Black can now try to play a Roozenburg attack:62024 7.29 x 20 15 x 24 8.4034 1318 9.3731 2127 10.32 x 21 16 x 27Because this variation isnt without dangermany players choose 6 20 25. White cannow move either 7.2923 or 7.4034.

Andreiko-variation

6 20 25 7.4034

7.2923 2127 8.32 x 21 16 x 27 9.3530!

25 x 34 10.39 x 30 is also interesting.


17/44

10 15 20 is punished by the kingshot 11.3631! 27 x 36 12.2318 12 x 32 13.38 x 18 13x 22 14.37 31 36 x 27 15.30 24 20x 3816.43 x 1 +.The main line 10 11 16 11.4439 711

12.3024! 19 x 30 13.3631 27 x 36 14.2319 14 x 32 15.38 x 7 8 12 16.7 x 18 13 x 2217.4035 favors white.The calm 10 13 18 is the best continuationfor black leading to a centre attack after 11.3731 18 x 29 12.33 x 13 8 x 19 13.41 37 22 x33 14.31 x 22 17 x 28 15.38 x 29.

7 14 20 8.4540 1014

9.5045 410

9 4 10 is the characteristic move of the

Andreiko-variation. 9 5 10 al ows the

strong centre attack 2823 x 23. 410 givesblack a better construction to play against thisattack. When confronted with this position inthe Sijbrands Andreiko match of 1973Sijbrands considered 10.2923 2127 11.32x 21 16 x 27 to be too dangerous andsimplified the game playing 10.3227 21 x 2311.29 x 27 although he later won the game bya shot.Later 10.2923 was played increasingly, withthe sharpest line being 10 21 2711.32 x21 16 x 27 12.36 31?! 27 x 36

13.38 32After this pseudo sacrifice white is threatening2318 3430 40 x 27 so black will have to

t th i 25 30 14 34 25 l di t

10.2823 19 x 28 11.32 x 23 isnt bad either,for example: 11 13 18 12.35 30 9 1313.4035 2127 14.3024 2731 15.36 x27 22 x 31 with an exciting play.

The hedgehog

1.3228 1721Playing 2.3126 1117 (or 1217) can leadto the 1.3228 1621 opening, but black canalso choose to play 2 19 23 withmaneuvering play.2.3732 2126 3.3227 26 x 37 4.41 x 32delivers white a quick development of his leftwing and 4 temps.

2.34292.3329 can be met by the sharp 20 25 or2 21 26 neglecting the simplifying 28232924 34 x 32 exchange.

22126Dutch GMI Johan Krajenbrink likes to play 21117 3.4034 1822.

3.4034 1621Fascinating play emerges after 3 11 174.4540 611 5.3732 26 x 37 6.42 x 31

1923 7.28 x 19 14 x 23 8.3530 20259.4137White cant go to yet, because of 13 19

B+1.

9 1621 10.4741 2126 and black triesto play against a right wing attack, for example11.5045 1014 12.3024 1116 13.3228 23 x 32 14.37 x 28 26 x 37 15.41 x 32 1621 etc.

4.4540 1116We look at two possible continuations for

white:

5.3732 26 x 37 6.42 x 31 2126 7.474226 x 37 8.42 x 318.3227 26 x 37 9.41 x 32 19 23 10.28 x 1914 x 23 11.35 30 has grown more popularrecently.

8 6 11Black wants to answer 9.4137 with 1721!10.3126 2127 11.32 x 21 18 23 12.29 x18 12 x 41 White wins a lot of temps so in this

variation black wil strive for a classical game.

Pieces 21 / 26 are somewhat passive.

9.5045 16!


18/44

Black stil answers 1621 to 10.4137 andthe alternative 10.48 42 16 21 11.31262024 12.26 x 17 12 x 21 13.29 x 20 15 x 24gives black a good classical game. Whites leftwing is weakened, so its hardly possible tobreak open the classical structure of the game.

Schwarzman-variation

5.3832 21275 20 24 6.29 x 20 15 x 24 7.3127 1823 8.4338 1015 9.4943 1420 10.2722 24 29 11.33 x 24 20 x 29 leads to amutual classical attack, with a complicatedgame. This is the Bezwerzjenko-variation.

6.31 x 22 18 x 38 7.43 x 32

6.32 x 21 26 x 17 7.4238 1923 8.28 x 1914 x 23 9.3530 can get very interesting too.

7 16 21 8.3631

8.4238 can also be considered, because it ismore flexible although it doesnt stop 21 27 x27. The classical reply 2024 9.29 x 20 15 x24 can be met by 10.3237 followed by 37 31 x 32 developing the left wing nicely.

8611 9.4238 1116 10.4943

Usually black tries to go to a fork-lock:10 20 25 11.4742 1520 12.5045White can launch a centre attack 12.2924 20

x 29 13.34 x 23.12 10 15 13.31 27 19 24 14.37 31

Escaping from the fork-lock 14.3430 25 x 23

15.28 x 30 1218 gives black a more flexibleposition. Whites left wing looks offbeat with the

The Russian bear

1.3228 2025 2.37322.3329 is met by 1722 x 22, 1722 x 2116 21 or 18 22, al with an interesting

game.

2 15 20 3.4137 1015 4.4641

There are several other options here. Forexample 4.3430 25 x 34 5.39 x 30 20 256.3024 (6 44 39 25 x 34 7.39 x 30 1520 8.44 39 20 24 gives black a goodclassical game) 6 19 x 30 7.35 x 24 leads toa right wing attack.Another possibility is 4.34 29 1722 5.28 x17 11 x 22 6.46 41 510 7.4034 711

(or 611) 8.4540 1117 9.5045 611which leads to the Vermin-variation. Atheoretical line is 10.3126 27 11.3731White can also play the fascinating 11.32 28!1923 12.28 x 19 14 x 23 13.29 24 20 x 2914.33 x 24 surrounding the black centre, that is

weakened by the absence of the base piece at

.11 19 23 12.3227 1419 13.2924 20x 29 14.33 x 24 19 x 30 15.35 x 24 23 16.3833 with a sharp game.

4 5 10

4 17 21 5.31 26 510 is the so-calledMemel-variation.

5.3127White can also go to the edge himself: 5.3126 2024 6.3631 1520 7.4136 18238.3429 23 x 34 9.39 x 30 25 x 34 10.40 x 291318 11.2923 18 x 29 12.3530 24 x35

13.33 x 15 is one of the lines that is gainingpopularity recently.

5 19 23 6.28 x 19 14 x 23

The idea to occupy & simultaneously was introduced by former worldchampion Andris Andreiko. Blacks centre is

undeveloped piece at . strong enough to al ow this 23 / 25 bond.14 26 x 37 15.42 x 31 and black has

to

decide whether he wants to eliminate 34 30

by playing 1319?! or play more quietly witheither 15 5 10 or 15 21 26.

7.3328 914 8.28 x 19 14 x 239.3933

After 9.3833 1014 10.3328 black cantplay neither 14 19? nor 13 19? an


19/44

has to change again with 10 4 10 11.28 x19 14 x 23 which indeed is played, butbecause in this variation the black position isweakened, more popular has become 9.3833 1319 10.3328 1722 11.28 x 17 11 x

31 12.36 x 27 10 14 and black keeps the

initiative.

91014 10.4439 1319

11.4944This is a modern continuation. The most

popular way to continue used to be 11.5044

11172111 4 9? 12.2721! gives white a kingshot

to .

12.3631White has all kind of alternatives here. Worldchampion juniors 2011 Roel Boomstraintroduced 12.33 28 21 26 13.39 33 813 14.35 30?! followed by 4 9 15.342923 x 34 16.30 x 39. White holds the centre andcan later launch a Highland-attack.

position that has occurred many times already.22.3833? is now punished by 1621 23.27x 7 2329! 24.33 x 24 19 x 30 25.35 x 24 20 x29 26.34 x 23 18 x 29 27.7 x 18 13 x 35 B+1.The alternative 22.39 33 23 29! favorsblack, especially after 23.34 x 23 18 x 29 24.33x 24 19 x 30! 25.35 x 24 20 x 29 for example26.27 22 14 19 27.43 39 16 and28.3127 is met by 1117 253034 1923 13 x 44 B+.

151217 16.4238 172217.28 x 17 11 x 22 18.4742 71219.3328 22 x 3 3 20.39 x 28 28

21.4439

21.4339? 2024 22.4943 2429! favorsblack.21.4439 cant be met by 16 21? 23.27 x 166 11 24.16 x 7 23 29 25.34 x 23 18 x 2926.7 x 18 13 x 44 because of 27.4034 29 x40 28.45 x 34 44 50 29.49 44 50 x 30.35 x 2 W+

22 6 11 23.3933 2329 24.34 x 23After 24.33 x 24 19 x 39 25.43 x 34 14 1926.49 43 19 24 only 27.28 22 is lef

122126 13.4136 813 white. 28.27 22 18 x 27 29.31 x 22 loses14.3328 49

14 2 8 wouldnt al ow 15.39 33? becauseof the 16 21 18 22 23 29kingshot.However black rather allows 3933? as this isworse than 38 33 which gives a betterdistribution of pieces.

15.383315.3933 28 16.4439 1217 17.4944

17 22 18 28 x 17 11 x 22 19 33 28 22 x 33

piece by 24 29 & 25 30 B+1 and 28.4339 loses to 1621 27 x 7 2430 35 x 24 20 x29 34 x 23 18 x 29 7 x 18 13 x 35 B+1.

24 18 x 29 25.33 x 24 19 x 30 26.35 x 24 20

x 29 with about equal play. This position is alsopossible with 49 at , as we saw, but nowwhites distribution of pieces is better.

11 172111 8 13 would allow the 27 22 34 30exchange although this isnt attractive for white


20/44

13.3933 49 14.4439 and black shouldchoose between 1721 and 1722.

12.3631 2126 13.3328 81314.3933 28 15.4741

This move, an idea introduced by HarmWiersma, looks strange at first sight, because

it creates a dangling piece at . The pointis however that black now cant play 12 17due to 3430 40 x 29 27 21 32 x 23, so hemust play 20 24 or 23 29 with acomplicated game, in which whites control

over the centre should compensate theweakness at .

15 23 29

15 2024 16.3429 23 x 34 17.40 x 20 15x 24 18.4439 favors white.

16.34 x 23 18 x 29 17.33 x 24 20 x 29

18.4439 1420 19.5044with a complicated game.

The cow

1.3228 2024 2.3430This opening gives black two interestingpossibilities:

1) 2 14 20 3.3025 10144.3732 1823 5.4237

Now 5 17 21 can be met by 6.31 26

(which is not possible after the normal5.41 37) 5 12 18 is met by 6.3934! Thereforeblack usual y plays:

5 4 10

6.4742White can play the Molimard-exchange to immediately, like in ClercChizhov Wch2001 (see appendix).

61218 7.2822 17 x 289.33 x 22 18 x 27 10.31 x 22 81211.3227 2 8 12.3731 121813.3126 712 14.2721 16 x 27

15.22 x 31

White wants to play against blacks left wing,

surrounding the centre.

Semi-classical variation

2) 2 18 23 3.3025 23 x 324.37 x 28 1318 5.4137 1721

This variation can be played if black wants tosurround the white centre. It is similar to 1.3127 1923 2.3328 1721 3.28 x 19 14 x 234.3833 (with reversed colors).

1.32 28 20 24 2.37 32 18 23 is oftplayed, but no clear theoretical lines haveappeared yet.

1.3329 The diamondRoozenburg-opening

1.3329 1923 2.2530 20252 14 19 can be met by 3.3024 3.3025or 3.4035.After 3.3025 the most active move is 3 17

22 4.25 x 14 9 x 20.The alternative 3 10 14 4.3933 17225.4439 1117 6.3228 23 x 32 7.37 x 28410 8.2923! 18 x 29 9.34 x 23 gives the

odds to white.


21/44

3.4035 1014 4.3025 2024 5.29 x 2015 x 24 6.34 30 5 10 7.4540 17 218.39 34 and if black goes to white willchange 3228 x 32 and build the power blockto put pressure at .

3.4035 14203 14 19 4.3024 19 x 30 5.35 x 24 9145 10 14 6.2419 13 x 33 7.39 x 10 5 x 148.3833 favors white.6.4540 1420 7.5045 39 8.3833 10

14 9.3328 510 10.28 x 19 14 x 23 11.43

38 17 22 12.31 27 22 x 31

13.36 x 27leads to a Roozenburg attack.

4.4440 1014 5.3833 14196.3024 19 x 30 7.35 x 24 17 228.4238 1117 9.3228 23 x 32

10.37 x 28

White takes a right wing attack. After 9.5044611 10.4742 510 black doesnt have tofear the attack at , because 11.3328 23x 32 12.38 x 18 9 14 13.38 33 14 x 2314.33 28? gives black the elegant

kingshot14 1722!! 15.28 x 6 2328 16.32 x 23 12

17 17.23 x 21 16 x 27 18.31 x 22 13 1819.22 x 13 8 x 50 + as was performedinTsinmanKalmakov 2000 and SkliarowDeVoogd 2004.

10 16 21 11.4137

11.38

32? fails due to 21

27 12.32 x 21 17x 37 13.41 x 32 611! 14.28 x 6 182315.29 x 18 20 x 27 B+1.

11 21 27 12.5044 611

1) 13.3126 2732 14.38 x 27 22 x 42 15.47x 38 and black should try to surround whitesattack.

2) 12.4741 16 13.3732 1116 14.32 x21 17 x 37 15.41 x 32 914 16.28 x 17 12 x

21 17.33 28 712 and black plays againstthe right wing attack again.

3) 12.4641 16 13.4842 914 14.3126White has to take care: after 14.28 23? 510!! he has no good move left! 15.37 31 is

punished by 2732! 16.38 x 27 2228 17.23x 32 13 19 18.24 x 22 17 x 46 B+. Check

yourself how to punish the other possible white

moves.

14 27 31 15.36 x 27 22 x 31 16.3732 3136 with an interesting game.

The Keller-opening

1.3329 1722 2.3933 11173.4439 611 4.5044 1 65.3126 1621 6.3228 1923

7.28 x 19 14 x 23

These moves lead to the fascinating Keller-opening. The amount of theory of this opening

is huge. I wrote a series of articles on thisopening in draughts magazine Hoofdlijn(consisting of 37 articles in total!). You can alsofind theory about this opening at the Luteijnwebsite. Frits Luteijn has played many gamesin this system and is known to be aconnoisseur on the Keller-opening (and manyother openings).

The Hedgehog

1.3329 1721This opening moves can lead to the samevariations as after 1.3228 1721 2.3329or 2.3429, but white can also try the modernsystem 2.39 33 21 26 3.44 39 11 174.5044 611 5.3430.

Krajenbrink-attack1.3329 1621 2.3126 1116

These moves usual y lead to a sharp game.We show what is called the Krajenbrink-attack:


22/44

3.3731Another main line is 3.3933 711 4.44391 7 5.50 44 and black can play 5 18 22, 5 20 25 or 5 19 23 al with a

complex game.

3611 4.3127 1822 5.27 x 1813 x 22 6.4137 913

7.3933

Sijbrands introduced the Springer ContraAttaque in this position, playing 7.29 23 19 x28 8.32 x 23.

After 7.3933 black can play either 7 21 27 8.32 x 21 16 x 27 or 7 13 18 8.4439

1923, see the Gantwarg Sijbrands (1988)game in the appendix.

The classical reply

1.3329 2024 2.29 x 20 15 x 243.3228 1721 leads to a classical game.More interesting is 3.3228 1621 4.31264.3933 2126 is also played.4 2127 5.38335.3731 1823 leads to a centre attack forblack5 27 32 6.2822 17 x 28 7.33 x 22 18 x27 8.37 x 28 1117 9.3933 1318 10.4439 1822 like MathijssenDolfing (2002).

3.3430 is also popular, for example 18234.3933White can also choose 4.3025 1218 5.40

34 712 6.3430 17 7.45404 1218 5.3228 23 x 32 6.37 x 28 1823 7.4237 23 x 32 8.37 x 28 1318 etc.

1.3329 1823 2.29 x 18 12 x 23

2 13 x 22 has been played many times byformer world champion Chogoliev. White cantry to get a fork-lock playing 3.3126 12184.3631 712 5.3227 17 6.3833 913 7.4238 1923 8.4136 as happened inSijbrandsChogoliev 1990.

3.3430 712 4.3025 1318Black has to correct his division of pieces andreinforce the right wing. White must chooseeither the scheme 5.3933 6.4439 7.4034 or 5.40 34 6.34 30 7.45 40 and ifwhite decides to play against a future blackattack the games gets exciting.

The buffalo

1.3329 1822 2.3126 20243.29 x 20 15 x 24

Black can also choose 2 19 24 3.39 332227 4.32 x 21 16 x 27 5.3732 11166.32 x 21 16 x 27 7.4137 1722 8.44398.34 30?? 27 318 14 19 9.5044 611 10.4641 1611.3832 27 x 38 12.43 x 32 but 2 20 24x 24 is much more interesting!

4.34

30

Other moves arent serious. 4.37 31 allows2429 34 x 23 19 x 28 32 x 23 22 27 31 x22 17 x 19 and 4.38 33 22 28! Isproblem for black either.

Black has two continuations, both leading to

interesting types of play.

413184 22 28 5.32 x 23 19 x 28 6.30 x 19 14 x

23 gives black a centre attack and afascinating game may lie ahead.


23/44

5.3631 1823 6.3227 12187.3732 712 8.4137 813

Usually white doesnt occupy yet, not

finishing his fork-lock, so black gets an extraoption playing 22 28 sometime, white tryingto surround blacks centre attack.

1.3328 Sijbrands-opening1.33 28 is the favorite openings move of thefamous Ton Sijbrands.

Old Dutch

1.3328 1823The Old Dutch opening usually leads to a

classical game and possibly a Highland attack.An example play would be something alongthese lines: 2.3933 1218 3.4439 712

If black delays the 19 23 x 23 3exchangeeven more with 3.3126 712 4.3731 17 5.4238 2025 6.4137 14 20 7.4641 1014 8.4742 510 9.3227 etc. wearrive at the same fork-lock position as fromthe 1.3228 1822 opening (line 3.2).

3 7 12

3 19 23 4.28 x 19 14 x 34 5.40 x 29 712is also a good idea for black, leading to thesame opening as 1.3228 18 23 2.332923 x 32 3.37 x 28 17 22 4.28 x 17 11 x 5.3933 1318 with exchanged colors.

4.4034 17 5.4540 19235 20 25 6.4238 1520 7.5045 10

15Another popular line is 7 19 23 8.28 x 19

14 x 23 9.3228 23 x 32 10.37 x 28 20 244.3127 2024 5.3731 1420 6.4137

11.29 x 20 25 x 14 etc.White can launch the Highland-attack already

playing 2722 x 22 and black could reply with8.3126

the symmetrical exchange 24 29 x 29.6 10 14 7.3429 23 x 34 8.40 x 29 20 25 9.29 x 20 15 x 24 10.2722 18 x 27 11.31x 22 and we arrive at positions to those thatarose from the 1.3228 1823 lines.

Modern play

1.3328 1822Usually this opening leads to a modern game:2.3833 1218 3.4238 712 4.4742 1

7 5.3429 2025 6.3934 1923 7.28 x19 14 x 23 8.3228 23 x 32 9.37 x 28 etc.

The alternative 2.3127 22 x 33 3.39 x 28 19 23 4.28 x 19 14 x 23 is not attractive for

white, since his left wing is not developed well,while piece is blocking this development.

2.3833 1218 3.3429Another possibility is 3.3126. Black then hasalso several options. The exchange 19 234.28 x 19 14 x 23 again gives white choice

The sharpest move here is 8 16 8 5 10 is usual y met by 9.3631 but theaggressive 9.28 23 19 x 28 10.32 x 23 canalso be played.

9.3731 1116 10.3127 10.4137?White should play 10.3127 22 x 31 11.26x375 10 12.29 24 etc. taking a right wingattack.

10 711 11.4641 410! 12.4742 27 leads to a difficult situation for white. Thespecial move 410 is played to meet the 2924 attack. If black played 510 he would notbe able to attack the outpost since the 1419

between 3228 x 28 and 3429 x 29.attack at the outpost would then be punished

3.31 26 712 4.3731 1923 5.28 x 19

14 x 23 6.32 27 leads to the so-cal edWiersma-opening, black can play either 6 13 19 or the sharp 6 23 28

by the 3127 2924 2722 32 x 5 kingshot.

If white indeed takes the attack the game cancontinue with 13.2924 20 x 29 14.34 x 23 18x 29 15 33 x 24 22 x 33 16 38 x 29 19 x 3


24/44

24 1014 20.4440 1419 21.4035 19x 30 22.35 x 24 5 10 and white hashugeproblems defending his outpost (see C. Pippel

Mathijssen game in appendix).

6.28 x 19 14 x 23 7.32 28 23 x 32

8.37 x 28 1621 9.4338

with a modern game. Black can try to get aRoozenburg attack.

The seagull

1.3328 1721 2.3933If white wants to avoid complications 2.3126

2024 3.26 x 17 11 x 33 4.38 x 20 15 x 24can be played.

2 21 26 3.4439 1117 4.5044

Black has now several possibilities. Lets

consider two of them:

1) 4 6 11 5.3127 19235 1 6? can be strongly met by 6.2823 19

x 28 7.32 x 23 18 x 29 8.34 x 23 with centre

attack.

5 17 21 6.2722 18 x 27 7.2823 19 x28 8.33 x 31 is not very exciting6.28 x 19 14 x 23 7.3328 914 8.28 x 1914 x 23 9.38 33 10 14 10.34 30.Whitewill try to surround the black centre. White willnot play 33 28 but he will try to get controlover later.

2) 4 7 11 5.3127If white doesnt want to play this line, he can

choose 5.33 29 20 24 6.29 x 20 15 x 247.3833 1015 8.4238 etc.6 17 22 7.28 x 17 11 x 31 8.36 x 27 1923 9.3530White now cant successful y surround blackscentre, because blacks left wing is too strong.He would better try to get a Roozenburg attackafter 2025 10.3329 etc.

1.3429 Fork-lock-opening1.3429 1923 2.4034

After 2.3328 23 x 34 both 3.40 x 29 and 3.39x 30 are played. After 3.39 x 30 white will

2 14 19 3.4540

3.33 28 is an interesting variation leading tomodern play. A critical line is 31722 4.28 x17 11 x 22 5.3933 1014 6.4339 12177.4843 611 8.4540 510 9.3228 23

x 32 10.37 x 28 8 12 11.41 37 16 12.3126 2024 13.29 x 20 15 x 24 14.4641 2127 with a Roozenburg attack for black.

Another popular line in this opening is5 7 11 6.4339 1014 7.4843 510 8.4540 17 9.3228

After 9.31 26 black should take care not tofall victim to the shot 9 12 17? 10.2621!17 x 26* 11.3228 23 x 32 12.37 x 17 11 x 2213.2924 20 x 29 14.34 x 1 W+.9 23 x 32 10.37 x 17 11 x 22 11.41 37 1621 12.31 26 21 27 13.37 31 with aninteresting game.

3 10 14 4.5045

4.32 28 23 x 32 5.37 x 28 is a frequentlyplayed alternative.

4510Chizov-opening

Tenfold world champion Alexe Chizhov likesto play 5.29 24 20 x 29 6.33 x 24 19 x 307.34 x 25, for example: 1319 8.3833 813 9.4238 1520 10.3934 28 11.4439 10 15 12.47 42 White trying to getpressure at blacks left wing. At 12 20 24 he

plays 13.34 29 23 x 34 14.40 x 20 15 x 215.4540 1823 16.3228 23 x 32 17.37 x28 1218 18.4034 etc. At 12 17 21 he

can play 13.3429 23 x 34 14.39 x 30 etc.

Fork-lock-variation 1

5.3126 2025 6.3731 14207.4137 10

The solid 7.2024 8.29 x 20 25 x 14 has beenplayed many times, but we follow a moreinteresting line.

8.4641 510 9.3228 23 x 3210.37 x 28 1923 11.28 x 19 13 x 24


25/44

Black has fork-locked the opponent. From thispopular theoretical position the main line is:

12.4137 813 13.3732 28 14.42371419

15.4842After 15.47411722 white should not play16.4842 1014 17.3228 because of 1217! with tactical problems for white, for 18.37 32 is punished by 1823! 19.29 x 27 242920.33 x 24 20 x 29 21.34 x 23 17 22 22.27 x

18 13 x 33 23.39 x 28 1621 24.26 x 17 11 x33 25.38 x 29 19 x 50 B+, but 16.32 28 1014 17.28 x 17 12 x 21 18.26 x 17 11 x 22 19.38

32 812 20.3328 22 x 33 21.29 x 38 likein DibmanStokkel (1983) (see appendix).

15 10 14 16.3127 1721

17.26 x 17 11 x 31 18.37 x 26

with an interesting fight in the fork-lock.

Fork-lock-variation 2

1.3429 2025 2.4034 14203.4540 1014

Black can take the fork-lock at once, if hewishes, playing 3 19 24.

4.3228From here there also often will emerge a fork-lock-position: 4 5 10 can be met by the 28

23 & 2924 exchange, so more principal is4 17 21 after which white could take a rightwing attack, by playing either 5.29 24 orallow a chain-lock playing either 5.3126 1924 6.26 x 17 11 x 22 7.28 x 17 12 x 21 or 5.37

32 510 6.4137 1923 7.28 x 19 13 x24 8.3228 2126 etc.

The peacock

1.3429 1722 2.4034 11173.4540 611 4.5045 16 5.3126 1621 leads to the Keller-opening, but white can

also play:

3.3228 611 4.3732 19235.28 x 19 14 x 23 6.41 37 1014

If black wants to eliminate the 7.3530 movehe can play 6 13 19, for example 7.464110 14 8.45 40 5 10 9.32 28 23 x 3210.37 x 28 1621 11.3126 1923 12.28 x19 14 x 23 etc.

7.3530 2025 8.4540 5109.4035 would allow 2328 32 x 23 222731 x 22 17 x 19 and whites right wing will belocked. Therefore white should make sure hestil has the 3024 2923 33 x 35 exchangeif black takes the 2328 2227 exchange.

9.4641 1419At 9 16 white plays 10.5045.

10.4035

Black has to choose between playing 1014and 914 & 39. 10 10 14 can be metby 11.3228 23 x 12.37 x 28 1621 with aninteresting, modern game. The alternative is11.4440 1420 12.5045 2024

Black cant take a centre attack playing 1222 28? 13.33 x 22 17 x 28 because of the

shot 14.29 24! 20 x 29 15.30 24 29 x 2016.3430 25 x 34 17.40 x 29 23 x 34 18.32 x25 W+1.

13.29 x 20 15 x 24 and white can simply play

14.3429 23 x 34 15.40 x 20 25 x 14 16.31


26/44

27 22 x 31 17.37 x 28 or play the

morecomplex 14.3127 22 x 31 15.36 x 27.

If black plays 10 9 14 white wil try to get a

Roozenburg attack: 11.44

40 3

9 12.5045 16 13.3127 22 x 31 14.36 x 27 etc.

1.3429 1721Usually this opening will be the same as after

1.32 28 17 21 2.34 29 21 26 etc. like

after 1.3429 1721 2.3933 2126 3.4439 1117 4.5044 611 5.3228 17 21 etc.

1.3430 The French opening

1.3430 2025The most frequently played continuation is

2.32 28 25 x 34 3.39 x 30 and after 16 214.3732 2126 5.3227 26 x 37 6.41 x 3215 20 7.46 41 20 24 the game will

continue along classical lines.

The Cheetah

2.3024 19 x 30 3.25 x 24This sharp continuation is the fastest way toget a right wing attack from the opening, whichfully explains the name of this opening..

3 18 22

This is the sharpest continuation.3 18 23 should be answered by 4.40344.32 28? 23 x 32 5.37 x 28 isnt good forblack is going to attack the outpost repeatedly

with huge problems for white. His right wing

will be demolished.

4 14 204 14 19 5.3430 25 x 34 6.39 x 30 10 14 7.30 25 19 x 30 8.25 x 34 gives white a

slight advantage. Piece 35 is centralized.

5.4440 20 x 29 6.33 x 24 1014 7.50441420 8.3228White should be aware of the shot after 9.39 33? 20 x 29 10.33 x 24 23 28! 11.32 x 23 12

18 12.23 x 21 16 x 27 13.31 x 22 131814.22 x 13 8 x 50 B+.

8. 23 x 32 9.37 x 28 20 x 29 10.34 x 23 and

th i thi ith hit t

Another quite popular line is 4.3126 14195.4035 19 x 30 6.35 x 24 1014 7.242015 x 24 8.33 28 22 x 33 9.38 x 20 and tfuture piece at promises an interestinggame.

4 14 20 5.3833 1014 6.3228

After 6.4238 1621 7.3126 1116 8.3731 2127 9.32 x 21 16 x 27 10.4137 611 11.37 32 11 16 12.32 x 21 16 x 213.46 41 14 19 white should give up hisoutpost at to attack the outpost at :14.4137 19 x 30 15.4034 1318 16.3732 913 17.32 x 21 like GantwargWiersma(1979).

6 16 21 7.3732 1116

8.4338 611 9.3127 22 x 3110.36 x 27 2126 11.4136

After 11.41 37 1 6! The 17 22 threa

would force white to flee to the edge of theboard with the poor 27 21 x 21. Thereforewhite is almost forced to play 11.4136. Blackcan choose between two sharp plans:

1) 11 17 21 12.4641 1217 13.4137712 14.3731 26 x 37 15.42 x 31 21 26

16.4742 26 x 37 17.42 x 31 16 with theidea of reducing whites space more and more.

2) 11 4 10 12.4741

12.4641? is wrong, for after 1419 13.4035 19 x 30 14.35 x 24 914 15.4440 1419 16.40 35 19 x 30 17.35 x 24 10 118.45 40 26 31! black wins a piece,because 19.2721 16 x 27 20.32 x 21 17 x 2621.36 x 27 is met by 25 30 22.24 x 35 2024 23.29 x 18 12 x 45 B+1 and 19.2722 is

punished by 13 18! 20.36 x 27 18 23 21


27/44


28/44

24 10.30 x 19 13 x 44 11.50 x 39 16

2112.26 x 17 11 x 44 13.4339 44 x 33 14.38 x29 with a slight edge for black. Positional ymore correct is 7.36 31 because black cant

play at white can play 4136 at the nextmove, always able to change after 1117 with2721 developing his left wing and 1217 isusually prohibited because of the bombshot,for example: 7.3631 510 8.4136 1014 9.34 30 12 17? 10.30 24!20 x 2911.2721 16 x 27 12.32 x 12 23 x 41 13.12 x34 W+1.

2) 5 13 19 In this case whites positional y

correct move is 6.3631 (followed by 4136)but he can try to trap his opponent playing 6.44

39 813 7.3430!? 2024? 8.2722! 18x 27 9.38 33 27 x 2910.39 34 23 x 3211.34 x 23 19 x 28 12.30 x 26 winningthepiece at .

3) 5 5 10 6.28 x 19 14 x 23 7.4439

Black has to dodge a famous trap, that has

made countless victims already: the coupLochtenberg: 7 10 14? 8.2722! 18 x 279.3631 27 x 36 10.3227 21 x 32 11.37 x10 914 12.10 x 19 13 x 24 13.3430 3914.30 x 19 41014 9 13 15.4034 13 x 24 16.3430 49 17.30 x 19 913 18.3934 13 x 24 19.3430 24 29 20.3025 2024 21.2520 8 13 22.3833 29 x 38 23.20 x 29 W+1.

15.3530!Preventing 914 while 2024 is met by thestick move 2014 W+.

15 20 25 16.4137 25 x 34 17.40 x 29 1218

18.1913! 8 x 19 19.2923 ad lib. 20.3731 36 x 27 21.3832 ad lib. 22.42 x 4 W+.

Black can play (from the last diagram) 7 21

26 8.3833! White is creating the crucial 33/ 39 formation making 13 19, which wouldstrengthen blacks left wing (13 19 813 28), unattractive because of 3731! 26 x 28 33x 24 20 x 29. Usual y the game continuessomething like: 8 10 14 9.3430 141910.3025 914 11.3530 49 12.40351117 13.4338 2024 14.4943 etc.

5 14 19 6.3025 2126

After 6 20 24 white builds the power blockplaying 4439 4034 3430 4540 5045 4934.

7.25 x 14 9 x 20

7 19 x 10 isnt bad, but white gets more

space at the right wing.

8.3530 510 9.3025 101410.4439 49 11.4034 2024

Another logical line is 11 11 17 12.4540711 13.5045 1721 14.3430 202415.4035 1117 16.4944 etc.

12.4540 1117 13.5045 142014.25 x 14 9 x 20

Black tries to get control over but 15.40

35 can lead to a fierce fight, like in theHoogendoorn W. van der Kooij game inwhich white managed to get control over later anyhow!

Left-wing-opening

1.3127 1721


29/44

White can play the simple 2.37 31 21

263.3228 26 x 37 4.41 x 32 developing his leftwing. 2.37 31 19 23 3.31 26 is alsopossible, but quite boring after 2024 26 x 17

11 x 31 36 x 27 2429 33 x 24 23 28 32 x23 18 x 20 =, but 3.4137 2126 4.33 281117 5.28 x 19 14 x 23 6.2721 16 x 27 31x 11 6 x 17 isnt exciting either.

Playing 2.3328 can lead to the same varitionas before, but if black plays 2126 3.39331117 4.4439 17 22 5.28 x 17 12 x 21instead of 1923 x 23, its harder for whitetoget a good surrounding play, as we alreadysaw in the 1.3328 1721 Seagull opening.6.3328 712 7.5044 17 8.3833 711

If black changes 19 23 x 23 white frees his

left wing by 3228 23 x 32 27 x 38.9.4338 1923 10.28 x 19 14 x 23 11.3328 914 12.28 x 19 14 x 23 13.3833 1014 14.3228 23 x 32 15.27 x 38 2024 whitetrailing 8 temps, giving black the initiative.

The big leap

1.3127 1722White can play many moves like 2.37 31 19

23 3.3126 22 x 31 4.26 x 37 or 2.322822 x 31 3.36 x 27. However, the most excitingcontinuation is:

2.3631 22282 19 23 3.3429 23 x 34 4.40 x 29 1419 5.3228 is very solid.

3.32 x 23 19 x 28 4.33 x 22 1621

5.27 x 16 18 x 36

White can also take 2.33 x 22 16- 21 3.27 x 1618 x 36. In both cases the piece at promises an interesting fight.

The edge-opening

1.3126 1923 2.3631 14193.4136

Another popular line is 3.3328 2024 4.3933 1014 5.4439 14 20 6.4136 5

10 7.4641 1014 8.3429 23 x 34 9.40 x29 1823 10.29 x 18 12 x 23 11.3127 712 12 45 40 In this position many

have overlooked the simple shot after 12 13

18? 13.28 22! 17 x 28 14.33 x 13 9 x 1815.2722 18 x 27 16.32 x 21 16 x 27 17.3530 24 x 33 18.38 x 16 winning piece .Usually black plays 12 20 25.

3 10 14 4.4641 510

5.3127 2024 6.3631 15207.3328 1015 8.4136 4109.4741 1721 10.26 x 17 11 x 3311.39 x 28 2329 12.34 x 23 18 x 29

13.2721 16 x 27 14.31 x 22 611 leads toan exciting game as in Valneris Chizhov(2001). Of course there are many morevariations in this opening, but we showed oneof the most interesting ones.

When playing this opening with black, youhave to take care for the trap called theMountain shot after 1.31 26 19 23 2.3731 14 19 3.33 29 (this move can also beplayed later on) 1014 4.4137 510 5.46

41 2025 6.3933

6 14 20? 7.2621!! 17 x 26 8.3228 23 x32 9.37 x 28 26 x 46 10.2923 18 x 29 11.34x 5 and blacks king is caught or 7.26 21 16 x27 8.32 x 21 17 x 26 9.3328 23 x 32 10.37 x

28 26 x 46 11.2923 18 x 29 12.34 x 5 withthe same result.Black can play 6 15 20 7.4439 10158.5044 410 9.3228 23 x 32 10.37 x 2819 23 11.28 x 19 13 x 24 with the fork-lockposition from 1.3429 1923.

Rejected edge-opening

1.3126 1721 2.26 x 17 11 x 22


30/44

This opening usual y transposes to 1.32

281722 2.28 x 17 11 x 22 3.3732. If whiteplays 3.3731 we arrive at the same position.

Of course black can play all moves, of

which1.31 26 18 23 is a frequently playedone,but we will not elaborate on this possibilitieshere.

1.3530 The wild horseThe sharpest of opening moves is 1.3530. Itois also the rarest opening move, but can lead

to exciting games!

1.3530 2025 2.40352.33 29 15 20 3.29 23 white takinganearly centre attack is called the Agafonov-opening.

2 15 20 3.4540 20243 17 22 is a good move too, after 4.3228

20 24 etc. white plays with a locked rightwing, like in a Schwarzman Chizhov worldchampionship match.

4.3329 24 x 33 5.38 x 29

5 17 22

5 10 15 6.50 45 510 7.4238 16 21! is also a popular line.8.3126 isnt attractivenow, because of 1722 26 x 28 1823 29 x 18 13 x 31 36 x 27 1520 and white is getting locked. At 8.39

33

black plays 21 27 9.32 x 21 17 x 26.

White

8.4741 2126 9.3933 and black can optfor either 9 17 22 or the continuationSijbrands chose against Cordier: 9 15 2010.4439 1924 11.30 x 19 13 x 24 12.4944 913 13.3530 24 x 35 14.29 23 18 x29 15.33 x 15 with an exciting game with theedge piece at (see appendix).

6.43386.42 38? is punished by 19 24! 7.29 x 2022 28 8.32 x 23 18 x 29 9.34 x 23 25 x 45and piece 23 wil be shelled.

6 11 17 7.3833 611

White can now choose between 8.3228 andthe immediate 8.3024 19 x 30 9.35 x 24 both

leading to a quick right wing attack.

Opening ceremony of a Chinese draughts

eventEpilogue

Many openings can be studied much deeper. Ifyou want to do this it is very helpful to have thegames database called Turbo Dambase,

produced by Klaas Bor. This databasecontains some 300,000 games.


31/44

1.3228 1923Roozenburg-variation

Appendix openings

WiersmaKuyken 1973 (2-0)

1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.35-30 20-25 5.33-29 5-10

6.40-35 14-19 7.41-37 10-14 8.46-41 17-22 9.31-27 22x31 10.36x27 11-17

11.45-40 6-11 12.30-24 19x30 13.35x24 14-20 14.38-33 17-21 15.42-38 21-26

16.41-36 11-17 17.48-42 1- 6 18.50-45 4-10 19.33-28 9-14 20.28x19 14x23

21.38-33 6-11 22.36-31 10-14 23.43-38 14-19 24.40-35 19x30 25.35x24 17-21

26.33-28 12-17 27.28x19 18-23 28.29x 9 20x40 29.45x34 3x23 30.47-41 7-12

31.49-43 8-13 32.39-33 12-18 33.44-40 13-19 34.33-28 18-22 35.27x29 21-27

36.32x12 11-17 37.12x21 16x47 38.29-23 19-24 39.28-22 24-30 40.34-29 30-34

41.22-17 34x45 42.17-11 47-36 43.11- 6 2- 7 44.38-33 45-50 45.43-39 50-45

46.42-38 7-11 47. 6x17 15-20 48.17-12 20-24 49.29x20 45x 7 50.20-14 7-23

Drost-variation

Wiersma - Georgiev 1995 (2-0)

1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.41-37 5-10 5.46-41 14-19

6.35-30 20-25 7.33-29 17-22 8.40-35 11-17 9.31-27 22x31 10.36x27 6-11

11.45-40 17-21 12.38-33 11-17 13.30-24 19x30 14.35x24 21-26 15.43-38 17-21

16.41-36 12-17 17.33-28 7-12 18.28x19 17-22 19.40-35 22x31 20.36x27 12-17

21.27-22 18x27 22.29-23 27-31 23.39-33 17-22 24.32-28 13-18 25.23x12 8x17

26.49-43 31-36 27.44-39 21-27 28.28-23 27-31 29.50-44 17-21 30.34-30 25x34

31.39x30 9-14 32.30-25 2- 8 33.44-39 4- 9 34.39-34 9-13 35.34-30 3- 9

36.38-32 1- 6 37.43-38 6-11 38.48-43 11-17 39.43-39 22-27 40.39-34 8-12

41.19x 8 12x 3 42.23-18 17-22 43.34-29 22x13 44.29-23 3- 8 45.33-28 8-12

46.23-19 14x23 47.28x17 21x12 48.32x21 16x27 49.47-41 36x47 50.38-33 47x20

51.25x 3 31x42 52. 3x47 26-31 53.30-24 31-37 54.35-30 10-14 55.30-25 15-20

56.24x15 14-19 57.25-20 19-23 58.15-10

Springer Contra Attaque

Traor - Gantwarg 1980 (02)

1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.41-37 14-19 5.46-41 5-10

6.35-30 20-25 7.33-29 10-14 8.40-35 17-22 9.31-27 22x31 10.36x27 23-28

11.32x23 19x28 12.38-32 13-19 13.32x23 19x28 14.41-36 8-13 15.37-31 18-22

16.27x18 13x22 17.39-33 28x39 18.44x33 4-10 19.42-38 11-17 20.38-32 6-11

21.32-28 16-21 22.47-42 12-18 23.43-38 9-13 24.45-40 22-27 25.31x22 18x27

26.42-37 7-12 27.50-44 21-26 28.48-43 17-21 29.44-39 11-16 30.38-32 27x38

31.33x42 1- 7 32.42-38 13-18 33.39-33 2- 8 34.28-23 18-22 35.38-32 14-20

36.43-38 7-11 37.32-28 11-17 38.38-32 22-27 39.49-44 27x38 40.33x42 10-14

41.36-31 8-13 42.42-38 14-19 43.23x14 20x 9 44.38-32 12-18 45.30-24 18-22

46.28-23 22-28 47.23-19 28-33 48.19x 8 3x12 49.29x38 17-22 50.44-39 21-27

51.32x21 16x36 52.38-32 22-27 53.32x21 26x17 54.39-33 17-22 55.34-29 22-27

56.29-23 27-31 57.37x26 36-41 58.40-34 41-47 59.33-29 12-17 60.26-21 17x26

61.23-18 9-14 62.29-23 47x20 63.34-30 25x34 64.18-13 20-24 65.23-19 14x23

66.13- 9 34-39 67. 9- 3 39-43 68. 3-14

94


32/44

Chizhov-exchange

Chizhov - Wesselink 1987 (2-0)

1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.41-37 5-10 5.34-29 23x34

6.39x30 14-19 7.44-39 10-14 8.40-34 18-23 9.45-40 12-18 10.46-41 7-12

11.32-28 23x32 12.37x28 17-22 13.28x17 11x22 14.50-45 1- 7 15.30-25 16-21

16.31-26 21-27 17.34-30 19-23 18.33-29 23x34 19.40x29 4-10 20.41-37 27-31

21.36x27 22x31 22.38-33 31-36 23.42-38 20-24 24.30x19 14x34 25.39x30 10-14

26.49-44 18-23 27.37-32 13-19 28.44-40 14-20 29.25x14 9x20 30.43-39 8-13

31.40-34 2- 8 32.48-43 13-18 33.33-29 20-25 34.30-24 19x30 35.35x24 12-17

36.39-33 3- 9 37.32-27 18-22 38.29x18 22x13 39.38-32 13-18 40.45-40 17-22

41.34-29 22x31 42.26x37 6-11 43.33-28 11-17 44.43-38 8-12 45.28-23 17-21

46.32-28 7-11 47.37-31 36x27 48.28-22 9-13 49.22x31 21-27 50.31x22 18x27

51.38-33 27-32 52.40-34 11-17 53.47-41 25-30 54.34x25 17-21 55.41-36 32-37

56.23-19 13-18 57.36-31 37x26 58.19-14 26-31 59.14- 9 31-36 60. 9- 3 21-26

61. 3x17 36-41 62.17-28 41-47 63.28-32 47-36 64.33-28 36-31 65.28-23 18-22

66.23-19 22-27 67.32x16 31-37 68.29-23 26-31 69.16-32 37x28 70.23x32 31-36

71.19-13 36-41 72.13- 8 41-46 73.32-27 46-28 74. 8- 2 28-41 75.27-21 41-23

76.21-17

Chizhov - Berot 2002 (2-0)1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.41-37 5-10 5.34-29 23x34

6.39x30 14-19 7.44-39 10-14 8.40-34 18-23 9.46-41 12-18 10.32-28 23x32

11.37x28 7-12 12.41-37 1- 7 13.45-40 17-21 14.50-45 21-26 15.38-32 18-23

16.30-25 20-24 17.34-29 23x34 18.40x20 15x24 19.39-34 4-10 20.43-39 12-18

21.49-44 18-23 22.44-40 7-12 23.34-30 11-17 24.31-27 17-21 25.39-34 10-15

26.42-38 12-18 27.47-42 6-11 28.34-29 23x34 29.40x20 15x24 30.27-22 18x27

31.45-40 27-31 32.36x27 13-18 33.28-23 19x39 34.30x10 18-22 35.27x18 9-13

36.18x 9 3x 5 37.40-34 39x30 38.35x24 8-13 39.25-20 21-27 40.32x21 16x27

41.38-33 11-17 42.20-14 2- 8 43.42-38 17-21 44.48-43 27-31 45.24-19 31x42

46.38x47 13x24 47.14- 9 8-13 48. 9x18 26-31 49.18-12 31-37 50.12- 7 24-30

51.43-39 5-10 52. 7- 2 30-35 53.39-34 10-14 54.34-30 35x24 55. 2x30 21-26

56.30-48

Groninger variation

Greveraars - Thijssen 1997 (02)

1.32-28 19-23 2.28x19 14x23 3.37-32 10-14 4.41-37 5-10 5.46-41 14-19

6.32-28 23x32 7.37x28 9-14 8.41-37 16-21 9.31-26 18-22 10.38-32 11-16

11.43-38 3- 9 12.48-43 7-11 13.34-29 20-24 14.29x20 15x24 15.40-34 21-27

16.32x21 16x27 17.37-32 11-16 18.32x21 16x27 19.34-30 13-18 20.30-25 1- 7

21.45-40 18-23 22.50-45 23x32 23.33-29 24x33 24.39x37 6-11 25.37-32 11-16

26.32x21 16x27 27.42-37 7-11 28.47-41 2- 7 29.37-32 11-16 30.32x21 16x27

31.41-37 7-11 32.44-39 12-18 33.37-31 19-24 34.38-32 27x38 35.43x32 9-13

36.32-27 14-19 37.40-34 19-23 38.34-30 23-28 39.30x19 13x24 40.27-21 8-12

41.21-16 28-32 42.16x 7 12x 1 43.49-43 22-28 44.45-40 18-23 45.40-34 10-14

46.31-27 32x21 47.36-31 24-29 48.43-38 29x40 49.35x44 23-29 50.44-40 17-22

51.26x17 22x11 52.40-35 11-16

95


33/44

1.3228 1823 ChefneuxThe Fox

A. Chizhov A. Shwarzman 1998 (1-1)

1.32-28 18-23 2.33-29 23x32 3.37x28 20-25 4.41-37 12-18 5.37-32 16-21

6.29-24 19x30 7.35x24 11-16 8.39-33 7-12 9.44-39 14-20 10.50-44 20x29

11.33x24 10-14 12.46-41 1- 7 13.41-37 14-19 14.40-35 19x30 15.35x24 9-14

16.39-33 3- 9 17.43-39 5-10 18.31-26 18-22 19.48-43 21-27 20.32x21 16x27

21.37-32 14-20 22.32x21 20x40 23.45x34 10-14 24.28-23 22-28 25.33x11 7x27

26.42-37 6-11 27.44-40 12-17 28.37-32 8-12 29.32x21 11-16 30.47-42 16x27

31.42-37 2- 7 32.37-32 13-19 33.32x21 19x28 34.38-33 17-22 35.36-31 9-13

36.33-29 4- 9 37.49-44 13-18 38.29-24 18-23 39.34-29 23x45 40.24-20 15x24

41.44-40 45x34 42.39x10 9-14 43.10x19 25-30 44.19-14 30-34 45.14- 9 34-40

46. 9- 4 7-11 47. 4x27 11-16

E. Holstvoogd T. Sijbrands 1973 (0-2)

1.32-28 18-23 2.33-29 23x32 3.37x28 20-25 4.41-37 17-21 5.37-32 15-20

6.39-33 19-24 7.44-39 21-26 8.50-44 26x37 9.42x31 14-19 10.46-41 10-14

11.41-37 11-17 12.47-42 6-11 13.28-23 19x28 14.32x23 5-10 15.31-26 16-21

16.38-32 11-16 17.42-38 21-27 18.32x21 16x27 19.48-42 1- 6 20.37-32 6-1121.32x21 11-16 22.34-30 25x34 23.39x19 16x27 24.40-34 13x24 25.34-30 9-13

26.30x19 13x24 27.44-39 4- 9 28.45-40 27-32 29.38x27 17-22 30.27x18 24-30

31.35x13 8x28 32.33x22 12x45 33.43-38 45-50 34.38-33 50-45 35.42-38 45-23

36.36-31 23-41 37.26-21 41-36 38.31-27 7-12

T. van Bokhoven T. Sijbrands 1977 (0-2)

1.32-28 18-23 2.33-29 23x32 3.37x28 20-25 4.39-33 15-20 5.41-37 19-24

6.46-41 14-19 7.37-32 17-21 8.41-37 21-26 9.44-39 16-21 10.50-44 10-14

11.31-27 11-16 12.29-23 5-10 13.34-29 7-11 14.40-34 12-17 15.27-22 8-12

16.37-31 26x37 17.32x41 3- 8 18.41-37 1- 7 19.38-32 13-18 20.22x13 9x18

21.43-38 21-27 22.32x21 17x26 23.45-40 16-21 24.49-43 8-13 25.37-32 2- 8

26.42-37 21-27 27.32x21 26x17 28.38-32 24-30 29.35x15 19-24 30.29x 9 18x27

31. 9x18 12x41

Highland-opening

A. Bajakin N. Mogiljanski 1987 (0-2)

1.32-28 18-23 2.38-32 12-18 3.31-27 7-12 4.36-31 20-24 5.43-38 14-20

6.49-43 10-14 7.41-36 5-10 8.46-41 1- 7 9.34-29 23x34 10.40x29 20-25

11.29x20 15x24 12.27-22 18x27 13.31x22 16-21 14.45-40 21-26 15.40-34 17-21

16.36-31 11-16 17.31-27 12-18 18.44-40 18-23 19.50-45 24-30 20.35x24 19x30

21.28x19 14x23 22.34-29 23x34 23.40x29 7-11 24.41-36 10-14 25.36-31 14-19

26.47-41 19-24 27.29x20 25x14 28.33-29 13-19 29.39-34 30x39 30.43x34 11-17

31.22x11 6x17 32.41-36 2- 7 33.27-22 17x28 34.32x23 19x28 35.38-32 8-13

36.32x23 13-19 37.42-38 19x28 38.38-32 9-13 39.32x23 13-19 40.23-18 4- 9

41.34-30 14-20 42.18-13 19x 8 43.48-43 7-12 44.30-24 20-25 45.29-23 9-1346.45-40 12-18 47.23x12 8x17 48.43-39 17-22 49.39-33 3- 9 50.33-29 22-28

51.40-34 9-14 52.24-20 13-19 53.20x 9 19-24 54.29x20 25x 3

96


34/44

F. de Koning K. Thijssen 2010 (0-2)

1.33-28 18-23 2.39-33 12-18 3.44-39 7-12 4.31-27 20-24 5.37-31 14-20

6.41-37 10-14 7.34-29 23x34 8.40x29 20-25 9.29x20 15x24 10.49-44 5-10

11.44-40 10-15 12.40-34 1- 7 13.27-22 18x27 14.31x22 14-20 15.45-40 16-21

16.46-41 21-26 17.36-31 17-21 18.41-36 11-16 19.31-27 7-11 20.50-45 24-30

21.35x24 19x30 22.36-31 12-17 23.33-29 30-35 24.38-33 35x44 25.39x50 13-18

26.22x13 9x18 27.45-40 17-22 28.28x17 11x22 29.43-38 20-24 30.29x20 25x14

31.33-28 22x33 32.38x29 14-19 33.50-44 6-11 34.44-39 8-13 35.47-41 11-17

36.41-36 19-23 37.40-35 15-20 38.39-33 17-22 39.35-30 13-19 40.42-38 4- 9

41.48-43 9-14 42.30-25 19-24 43.43-39 24-30 44.29-24 20x40 45.25x45 23-28

46.32x12 21x34

1.3228 1722 x 22 Chogoliev-openingH. Wiersma W. Chogoliev 1976 (2-0)

1.32-28 17-22 2.28x17 11x22 3.37-32 12-17 4.41-37 6-11 5.46-41 8-12

6.32-28 16-21 7.31-26 21-27 8.35-30 2- 8 9.30-25 27-31 10.36x27 22x31

11.34-29 31-36 12.37-32 1- 6 13.40-34 19-23 14.28x19 14x23 15.25x14 10x19

16.45-40 5-10 17.29-24 19x30 18.34x25 10-14 19.39-34 13-19 20.50-45 17-21

21.26x17 11x22 22.44-39 8-13 23.34-29 23x34 24.39x30 6-11 25.32-28 11-1726.40-34 3- 8 27.34-29 4-10 28.29-23 18x29 29.33x24 22x33 30.38x29 19-23

31.29x18 13x22 32.41-37 9-13 33.42-38 12-18 34.38-33 8-12 35.33-29 22-28

36.43-38 28-33 37.38-32 33-39 38.32-28 7-11 39.28-23 18-22 40.49-43 13-18

41.43x34 11-16 42.45-40 16-21 43.40-35 21-26 44.24-19 22-28 45.23x32 14x23

46.47-41 36x47 47.32-27 47x24 48.30x28 17-21 49.27x16 12-17 50.34-29 10-14

51.35-30 15-20 52.28-23 18-22 53.30-24

Chizhov-attack

A. Georgiev A. Chizhov 2003 (2-0)

1.32-28 17-22 2.28x17 11x22 3.37-32 6-11 4.41-37 12-17 5.46-41 8-12

6.32-28 16-21 7.31-26 21-27 8.35-30 2- 8 9.30-25 1- 6 10.37-31 19-23

11.28x19 14x23 12.25x14 10x19 13.34-30 5-10 14.30-25 23-28 15.41-37 10-14

16.40-34 19-24 17.45-40 14-20 18.25x14 9x20 19.40-35 3- 9 20.34-30 18-23

21.30x19 23x14 22.35-30 13-19 23.30-25 19-24 24.50-45 9-13 25.45-40 13-19

26.40-34 4- 9 27.34-29 27-32 28.38x18 12x34 29.33x22 17x28 30.39x30 24x35

31.42-38 20-24 32.48-42 8-12 33.43-39 11-17 34.31-27 6-11 35.36-31 24-29

36.27-22 28-33 37.39x28 29-34 38.31-27 34-40 39.27-21 40-45 40.37-31 19-24

41.44-40 45x34 42.38-33 35-40 43.22-18 12x32 44.21x 1 32-37 45.49-43 37x28

46. 1- 6 24-29 47. 6x35 29-33 48.31-27 9-13 49.35x 2 33-38 50. 2-30 34-40

51.30-35 40-45 52.35-49 38-42 53.47x38 45-50 54.38-32 50-33 55.27-21 33- 6

56.32-27 6-33 57.21-16

97


35/44

1.3228 1722 x 21 Schwarzman manoeuvring openingA. Shwarzman A. Chizhov 2003 (0-2)

1.32-28 17-22 2.28x17 12x21 3.31-26 7-12 4.26x17 12x21 5.37-31 2- 7

6.31-27 21x32 7.38x27 11-17 8.43-38 19-23 9.49-43 17-21 10.36-31 21x32

11.38x27 23-28 12.33x22 16-21 13.27x16 18x36 14.41-37 14-19 15.39-33 10-14

16.46-41 19-23 17.37-32 14-19 18.41-37 13-18 19.32-27 5-10 20.37-32 10-14

21.44-39 9-13 22.43-38 4- 9 23.33-28 6-11 24.34-30 11-17 25.40-34 20-24

26.30-25 24-29 27.42-37 29x40 28.35x44 17-21 29.44-40 15-20 30.40-35 20-24

31.45-40 14-20 32.25x14 9x20 33.50-45 20-25 34.48-43 3- 9 35.39-33 24-30

36.35x24 19x30 37.28x19 13x24 38.33-28 18-23 39.28x19 24x13 40.43-39 8-12

41.37-31 12-18 42.40-34 18-23 43.31-26 23-28 44.26x17 28x37 45.38-32 37x28

46.34-29 30-35 47.29-24 1- 6 48.27-22 25-30 49.22x33 30x19 50.33-28 7-12

51.17x 8 13x 2 52.39-33 19-23

E. Prosman A. Shwarzman 2004 (1-1)

1.32-28 17-22 2.28x17 12x21 3.35-30 20-25 4.40-35 15-20 5.45-40 20-24

6.33-29 24x33 7.39x28 11-17 8.44-39 18-22 9.49-44 22x33 10.39x28 13-18

11.44-39 18-22 12.38-33 14-20 13.42-38 20-24 14.50-45 7-12 15.37-32 10-14

16.41-37 24-29 17.33x13 22x44 18.40x49 9x18 19.32-28 1- 7 20.38-33 5-1021.37-32 7-11 22.43-38 3- 9 23.49-43 9-13 24.30-24 18-23 25.28x19 14x23

26.31-27 21-26 27.47-42 4- 9 28.43-39 17-21 29.46-41 12-18 30.41-37 8-12

31.27-22 18x27 32.33-28 2- 8 33.28x19 9-14 34.39-33 14x23 35.33-28 11-17

36.28x19 17-22 37.48-43 12-17 38.36-31 27x36 39.32-27 21x41 40.42-37 41x32

41.38x 9 36-41 42. 9- 4 41-46 43. 4x15 46x 5 44.43-38 26-31 45.24-19 5x30

46.35x24 31-37 47.24-19 37-41 48.19-14 41-47 49.14-10 8-13 50.45-40 13-19

51.40-34 19-24 52.15x11 6x17 53.10- 5 17-21 54. 5-37 21-26 55.37-48 47-24

56.48-37 24-35 57.34-29 35-13 58.37-32 26-31 59.32-28 31-36 60.28-37 13- 8

61.37-28 8-30 62.28-32 30-13 63.32-37 13- 8 64.37-28 16-21 65.28-32 21-26

66.32-28 8-13 67.28-37 13-35 68.37-28 35-13 69.28-32 13- 2 70.32-28 2-13

71.28-32 13-22 72.29-24 22-33 73.24-19 33-22 74.19-14 22- 4 75.32-19 26-31

76.19-32 25-30 77.32-43 30-35 78.43-48 36-41 79.48x26 41-46

A. Shwarzman A. Chizhov 1998 (1-1)

1.32-28 17-22 2.28x17 12x21 3.34-30 7-12 4.30-25 11-17 5.31-26 6-11

6.40-34 19-23 7.35-30 1- 6 8.45-40 13-19 9.40-35 9-13 10.44-40 4- 9

11.50-45 2- 7 12.37-31 18-22 13.31-27 22x31 14.26x37 17-22 15.33-29 12-18

16.39-33 7-12 17.37-31 21-27 18.31-26 11-17 19.49-44 23-28 20.44-39 19-24

21.30x19 14x23 22.25x14 9x20 23.29-24 20x29 24.33x24 10-14 25.38-33 17-21

26.26x17 12x21 27.42-38 8-12 28.35-30 14-20 29.30-25 20x29 30.33x24 13-19

31.24x13 18x 9 32.41-37 12-18 33.37-31 21-26 34.47-42 26x37 35.42x31 5-10

36.34-29 23x34 37.40x29 16-21 38.39-33 28x39 39.43x34 9-14 40.31-26 22-28

41.26x17 18-22 42.29-23 28x19 43.17x28 19-23 44.28x19 14x23 45.46-41 6-11

46.41-37 11-17 47.37-32 17-21 48.48-42 10-14 49.42-37 15-20 50.34-30 21-26

51.32x21 26x17 52.37-32 3- 8 53.38-33 8-13 54.45-40 17-21 55.40-34 13-19

56.34-29 23x34 57.30x39 19-23 58.33-28 23-29 59.28-22 20-24 60.22-18 14-2061.25x14 24-30 62.14- 9 29-34 63.39-33 34-40 64. 9- 3 40-44 65. 3x26 30-34

66.32-28 44-49 67.26-48 34-40 68.48-39 49-21 69.18-13 21-26 70.33-29 26-17

98


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1.3228 1822 The eagleMutual-outposts-variation

A. Gantwarg H. Wiersma 1979 (1-1)

1.32-28 18-22 2.37-32 12-18 3.41-37 7-12 4.46-41 1- 7 5.34-29 19-23

6.28x19 14x34 7.40x29 10-14 8.35-30 20-25 9.30-24 5-10 10.44-40 14-20

11.50-44 9-14 12.32-28 16-21 13.31-26 11-16 14.37-32 21-27 15.32x21 16x27

16.38-32 27x38 17.43x32 14-19 18.40-35 19x30 19.35x24 17-21 20.26x17 22x11

21.42-38 10-14 22.44-40 18-22 23.28x17 11x22 24.41-37 4-10 25.49-44 3- 9

26.47-42 14-19 27.40-35 19x30 28.35x24 10-14 29.45-40 14-19 30.40-35 19x30

31.35x24 9-14 32.44-40 6-11 33.32-28 11-17 34.37-32 14-19 35.40-35 19x30

36.35x24 13-19 37.24x13 8x19 38.29-23 20-24 39.23x14 24-29 40.33x24 22x44

41.14- 9 44-50 42.24-19 25-30 43. 9- 4 17-21 44.19-14 30-35 45. 4-31 35-40

46.14- 9 40-45 47. 9- 4 50- 6 48.31-37 45-50 49.37-46 50-11 50.42-37 6- 1

51.37-31 11- 6 52.31-27 15-20 53.27x16 20-25 54. 4-31 7-11 55.16x18

Mutual outposts variation

L. Thijssen - B. Terwel 1996 (0-2)

1.34-29 17-22 2.32-28 11-17 3.37-32 6-11 4.41-37 1- 6 5.46-41 19-236.28x19 14x34 7.40x29 10-14 8.35-30 20-25 9.30-24 14-20 10.44-40 9-14

11.50-44 5-10 12.32-28 16-21 13.31-26 11-16 14.37-32 21-27 15.32x21 16x27

16.38-32 27x38 17.43x32 4- 9 18.42-38 22-27 19.32x21 25-30 20.24x35 18-23

21.29x18 12x34 22.21x 1 20-25 23.40x

abertura traduzida

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