The Modern Defense (also known as Robatsch Defense after Karl Robatsch) is the opening of a hypermodern chess where Black allows White to occupy the center with pawns in d4 and e4, then proceeds to attack and weaken this "ideal" center without trying to occupy it on its own. This opening is most commonly used by British ancestors Nigel Davies and Colin McNab.
Modern Defense is closely related to Pirc Defense, the main difference being that in Modern, Black delayed developing his knights into f6. Deferment... Nf6 attacking pawn White on e4 gives White option hit g7-bishop with c2-c3. There are many possible transpositions between two openings.
The Encyclopaedia of Chess Openings ( ECO ) classifies the Modern Defense as the B06 code, while the B07 code to B09 is assigned to Pirc. The tenth edition of Modern Chess Openings (1965) groups Pirc and Robatsch together as "Pirc-Robatsch Defense".
Video Modern Defense
2.d4
Baris utama: 2.d4 Bg7
White's most powerful response to Modern Defense is 2.d4, which Black usually responds to... Bg7. The main continuation is:
- 3. Nc3 d6 4. f4 c6 5. Nf3 Bg4 (Standard Line, ECO B06) 3. c4 ( ECO A40) d6 4. Nc3 Nc6 5. Be3 e5 6. d5 Nce7 (7.g4 will be answered by 7... f5 8.gxf5 gxf5 9.Qh5 Ng6 10.exf5 Qh4 11.Qxh4 Nxh4 12.Nb5 Kd8)
Kemungkinan lain termasuk:
- 3.Bc4 (Bishop Attack)
- 3.Bd2 (Westermann Gambit)
- 3.Bd3 (Angin Gambit)
- 3.f4 (Three Pawns Attack)
- 3.g3
- 3.Nf3
Fischer 3.h4!?
Bobby Fischer suggests step 3.h4!? as an unorthodox attempt against 1... g6 2.d4 Bg7, in his annotations for the match against Pal Benko. (Fischer played 3.Nc3 in actual game.) The idea is to dismantle Black open kingside by h4-h5 followed by hxg6, because... gxh5 will greatly weaken the cover for the Black king.
System Averbakh
The Modern Defense, Averbakh System ( ECO A42) dapat dihubungi oleh garis:
- 1.e4 g6 2.d4 Bg7 3.c4 d6 4.Nc3 (lihat diagram)
- 1.d4 g6 2.c4 Bg7 3.Nc3 d6 4.e4 (lihat diagram)
The possible moves for Black at this point include 4... Nf6, 4... Nc6, 4... e5, and 4... Nd7. Step 4... Nf6 leads to the Indian Defense King position, where White has option 5.Nf3, 5.f3, 5.Be2, 5.f4, and so on.
Maps Modern Defense
Unusual White Response
Flexibility and toughness Modern Defense has provoked some very aggressive responses by White, including a rough attack named Monkey's Bum, the typical sequence is 1.e4 g6 2.Bc4 Bg7 3.Qf3. (The smoother version is Monkey's Bum Deferred, where White plays Bc4 and Qf3 only after developing queen knight .)
Other unusual openings can be achieved after 1.e4 g6. The Hippopotamus defense is one such system. Another is the Norwegian Defense (also known as North Sea Defense) which starts 1.e4 g6 2.d4 Nf6 3.e5 Nh5. (If White plays 4.g4, Black backs the knight with 4... Ng7 On 4.Be2, Black can rewind the knight or take the pawn with 4... d6!? If White plays 3.Nc3 instead of 3.e5, Black can transpose to Defense Pirc with 3... d6 or continue in unconventional way with 3... d5!?)
Transposition is possible after 2.c4, eg MarÃÆ'³czy Bind result after 2... c5 3.Nf3 Bg7 (or Nc6) 4.d4 cxd4 5.Nxd4 and Averbakh system is reached after 2... Bg7 3.d4 d6 4.Nc3. After 2.Nf3, Black can play 2... c5, transpose to Sicilian Defense, or 2... Bg7. After 2.Nc3, Black can transfer to Sicily closed with 2... c5 or 2 play... Bg7.
Kavalek vs. Suttles
In these games that are played in the Nice Olympiad in 1974, GM Canada Duncan Suttles, one of the leading exponents of modern, American-Czech beat GM Lubomir Kavalek: Reviews
- 1. e4 c6 2. d4 d6 3. Nf3 BG7 4. Be2 Nf6 5. Nc3 (PIRC defense by transposition) 5... a6 6. a4 0 -0 7. 0-0 b6 8. Re1 Bb7 9. Bc4 e6 10. Bf4 Nbd7 11. Qd2 b5! (started a deep combination; Suttles later commented that Kavalek had occupied the center and developed the piece in the manner suggested by Fred Reinfeld, but now worse) 12. axb5 axb5 13. Rxa8 Qxa8 14. Bxb5 Bxe4 15. Nxe4 Nxe4 16. Qxe4 Rxe4 17. Ra8 18. h4 Bxd7 Qb7! (although material , White is in trouble; note that the bishop in d7 almost caught) 19. d5 e5 20. h5 RA1 BH6 Qxb2 21. 22. 23. Bxg7 Qh1 KH2 QB1 KG3 Kxg7 24. 26. 25. BH3 QC1 Qxd2 c4 h6 Kf6 27. 28. 29. Kg5 Nxd2 NE4 Kxh6 BD7 30. f5 31. Ra7 32. Bb5 Nf6 33. g5 34. Ng8 KG7 NE7 Kf6 35. Nc6 36. RA3 KH2 Nb8 h4 h5 37. g4 38. Na6 Nxc7 Ra2 39. 40. 41. g3 KG1 fxg3 hxg3 42 Kf1 e4 0-1
References
Further reading
- Davies, Nigel (2008). Get started: Modern . Chess everyone. ISBN: 9781857445664.
Source of the article : Wikipedia
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