[Event "Belgrade"] [Site "?"] [Round "25"] [White "Fischer"] [Black "Spassky"] [Result "1-0"] [ECO "B23"] [Opening "Sicilian: Chameleon Variation"] 1. e4 c5 2. Nc3 Nc6 3. Nge2 d6 4. d4 cxd4 5. Nxd4 e6 { Another open Sicilian, this time a Scheveningen.} 6. Be3 {This is used to steer the game into a specific variation of the Scheveningen, namely, a delayed Keres Attack. The idea of a Keres Attack is to play an early g2-g4-g5, aiming directly at the enemy king.} 6... Nf6 7. Qd2 Be7 8. f3 {This introduces the English Attack, favored by Nigel Short and other British Grandmasters.} 8... a6 9. O-O-O {Black can also launch the kingside attack before castling.} 9... O-O { With players castled on opposite wings the life-or-death struggle begins.} 10. g4 {This is the basic idea of the English Attack, which is sort of a delayed Keres Attack. White launches a pawnstorm against the Black king.} 10... Nxd4 { 10...Nd7 will just transpose below after an eventual g4-g5.} 11. Bxd4 { 11.Qxd4 b5 12.h4 Bb7} 11... b5 {11...Nd7 is also possible.} 12. g5 {Technically this is a theoretical new idea, but in fact the game steers back into charted territory quickly. 12.Kb1 is the alternative.} 12... Nd7 13. h4 b4 { 13...Bb7 14.Bd3 Rc8 15.Kb1 Ne5 16.Qf2 White stands better.} 14. Na4 Bb7 { Here is the true new idea. 14...Qa5 15.b3 Nc5} 15. Nb6 {This is Fischer's new idea. 15.Qxb4? Bc6 Intending Rb8, an idea that had already been noticed by theoreticians, though it had not yet been played in an attested game.} 15... Rb8 {15...Nxb6 16.Qxb4 d5 17.Qxb6 Qxb6 18.Bxb6 dxe4 19.Rd7! wins for White.} 16. Nxd7 Qxd7 17. Kb1 {White has the superior position because of a spatial advantage and prospects for a kingside attack.} 17... Qc7 18. Bd3 Bc8 19. h5 e5 20. Be3 Be6 {Spassky could have reached a similar position some time ago, with less danger to himself on the kingside. Now Fischer quickly builds his attack.} 21. Rdg1 a5 22. g6 { A typical example of the g6-break, seen many times in the games of Mikhail Tal. } 22... Bf6 {Relatively best, since any capture at g6 could prove deadly.} 23. gxh7+ Kh8 24. Bg5 {White eliminates Black's most effective defender.} 24... Qe7 {24...Bxg5 25.Rxg5 f6 would have provided stiffer resistance, though White would still have had an impressive attack.} 25. Rg3 { White wants to double rooks on the g-file.} 25... Bxg5 26. Rxg5 Qf6 { 26...f6! would have been a stronger defense.} 27. Rhg1 Qxf3 {Otherwise Wh ite will play his queen to g2 with an overpowering attack. Now Fischer must work for the win.} 28. Rxg7 Qf6 29. h6 {A problem-like solution. White must sacrifice both h-pawns to expose the enemy king to the mating attack.} 29... a4 30. b3 {A prophylactic move to eliminate any counterplay.} 30... axb3 31. axb3 Rfd8 {Black tries to play d5, and get something going.} 32. Qg2 Rf8 33. Rg8+ Kxh7 34. Rg7+ Kh8 35. h7 {Since Rg8+ followed by a check on the h-file is inevitable, Black resigned. Score: Fischer 9, Spassky 4, 12 draws.} 1-0