[Event "Leon 21st"] [Site "Leon"] [Date "2008.06.01"] [Round "2.1"] [White "Anand, Viswanathan"] [Black "Ivanchuk, Vassily"] [Result "0-1"] [ECO "B85"] [WhiteElo "2803"] [BlackElo "2740"] [Annotator "Andrew Soltis"] [PlyCount "52"] [EventDate "2008.05.30"] [EventType "k.o. (rapid)"] [EventRounds "2"] [EventCountry "ESP"] [Source "ChessBase"] [SourceDate "2008.07.03"] {PROPHYLAXIS AND COUNTERPLAY Aron Nimzovich elaborated on the uses of prophylaxis in the 1920's. However, the emphasis then and for decades to come was on safety for the sake of safety. It was the ounce of prevention to avoid needing a pound of cure. Prophylaxis was considered an alternative to counterplay. New Defense changes the focus. Prophylaxis can be the necessary preparation for counterplay.} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6 10. Qe1 O-O 11. Qg3 Nxd4 12. Bxd4 b5 13. a3 Bb7 14. Kh1 Rad8 15. Rae1 Rd7 16. Bd3 Re8 17. f5 e5 18. Be3 {Diagram [#] White's 23th move stopped ....b4. His 14th move anticipate lines in which the center is opened and Black delivers a key check on the open g1-a7 diagonal. These are common prophylactic moves in the Sicilian Defense. Black also took a prophylactic step, .....Rad8 to deter e4-e5. For example, 15.e5 dxe5 16.fxe5? Rxd4. In the diagram he played ...............} Kh8 ({That prevented Bh6. But it also prepared ....d5. The push wouldn't work immediately.} 18... d5 $2 19. exd5 Nxd5 $2 20. Nxd5 Bxd5 21. f6 ({or} 21. Bh6 Bf6 22. Bxg7 Bxg7 23. f6)) { White tried to exploiit the king's new position with .....} 19. Bg5 {hoping for Qh4, Re3-h3 and then Bxf6/Qxh7 mate. For example} (19. Bg5 Bc6 20. Qh4 Qb7 {readies} 21. -- a5 {and 22. ....b4} {But} 22. Re3 {makes} -- 23. Rh3 {strong. Black was happy to trade dark-squared bishops,}) 19... Nh5 $1 20. Qh4 Bxg5 21. Qxg5 Nf6 {because it put him on the verge of counterplay with ....d5 (or .... a5 and ....b4 first) Play went ......} 22. Rf3 Qc5 23. Rg3 Rg8 {Diagram [#] The kingside is secure and Black, with a powerfully placed queen, is at least equal. After ..........} 24. Rh3 ({he could have broken in the center with} 24. Rh3 d5 25. exd5 Bxd5 ({not} 25... Nxd5 $4 26. Rxh7+ Kxh7 27. Qh5#)) {He preferred .......} 24... b4 25. axb4 Qxb4 26. Rb1 Rc7 {and won after ....d5.} 0-1 [Event "Leningrad master"] [Site "Leningrad"] [Date "1954.??.??"] [Round "?"] [White "Geller, Alexander G"] [Black "Spassky, Boris V"] [Result "0-1"] [ECO "B95"] [Annotator "Andrew Soltis"] [PlyCount "72"] [EventDate "1954.??.??"] [EventType "tourn"] [EventRounds "15"] [EventCountry "URS"] [Source "ChessBase"] [SourceDate "1999.11.16"] {DEAD PAWNS One of the best ways to neutralize a potentially explosive file is to create a 'dead pawn'. This is an advanced enemy pawn that is deliberately not captured because it will block a file.} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Be7 8. O-O-O Qc7 9. g4 b5 10. Rg1 b4 11. Nce2 Bb7 12. Bxf6 Bxf6 13. g5 Bxd4 14. Nxd4 Nd7 15. Qe2 Nc5 16. Bg2 O-O 17. Kb1 Rfd8 18. h4 a5 19. h5 e5 20. Nf5 Ne6 21. Qg4 a4 22. g6 ({On} 22. h6 $2 {Black would have kept the kingside close with} g6 $1 {but after 22g6! at least one attacking file would be partly open. However, White saw that there was no follow-up to 23.....gxh7+. He should deal instea with Black's threats, beginning with 23. ....bxc2+}) 22... b3 { Diagram [#] The most natural defense is} (22... b3 23. cxb3 axb3 24. axb3 {but this loses to} Ra1+ $1 25. Kxa1 Qc2 {and} 26. -- Ra8#) (22... b3 23. cxb3 axb3 {Moreover} 24. a3 {instead of 24.axb3, also fails to} Qc2+ 25. Ka1 Rxa3+ $1 26. bxa3 Qa2#) (22... b3 {And} 23. axb3 axb3 24. c3 {loses to} Qa5) {White found} 23. cxb3 axb3 24. Rc1 $1 {and then} bxa2+ 25. Ka1 {Diagram [#] The pawn at a2 is 'dead' and blocking Black's attack. There is a new target now, at b2 but it will take at least three moves for black's pieces to menace it. And 25.... Nc5, with the threat of ....Nh3 mate, loses to 23.Rxc5! followed by a lilling capture on f7 or h7. Black met the threat to his queen with ......} Qd7 {and left White to choose a pawn capture on the kingside. He picked ....} 26. gxf7+ (26. gxf7+ {since} Qxf7 $4 ({also bad is} 26... Kh8 {because of} 27. Nxg7 Nxg7 28. f8=Q+ Rxf8 29. Qxd7) 27. Nh6+) {So} 26... Kf8 {was forced. There were two dead pawns now. Diagram [#]} (26... Kf8 27. Bf1 Qxf7) 27. Rgd1 ({White's attack looks like the faster one because he can move his bishop and threaten Nxg7. Chances would be roughly equal after} 27. Bf1 Qxf7 {(and} 28. Bc4 d5 {for example.)}) {But White decided to take aim at d6. After} 27... Rdc8 28. Rxc8+ Qxc8 $1 ({Black was regaining the initiative. for example} 28... Qxc8 29. Nxd6 Nc5 $1 { threatens ....Nb3 and allows} 30. Qg3 Qg4 $1 {and wins. The rest was one-sided.}) 29. Qg3 Qc2 30. Re1 Kxf7 31. Nxd6+ Kg8 32. h6 Qd2 33. f4 exf4 34. Qc3 Qxd6 35. Qb3 Bc8 36. Rd1 Rb8 0-1