[Event "New York"] [Site "?"] [Round "0"] [White "Fischer"] [Black "Cardoso"] [Result "1-0"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 {This has become known as the Fischer Variation. However, the interesting material of this game lies not in the opening, but in the endgame.} 6... e6 7. O-O Bd7 8. Bb3 Nc6 9. Be3 Be7 10. f4 Qc7 11. f5 Nxd4 12. Bxd4 b5 13. a3 e5 14. Be3 Bc6 15. Nd5 Bxd5 16. Bxd5 Nxd5 17. Qxd5 Rc8 18. c3 Qc4 19. Qb7 Qc6 20. Qxc6+ Rxc6 21. a4 Kd7 22. axb5 axb5 23. Ra7+ Rc7 24. Rfa1 Rb8 25. Kf2 Rbb7 26. Rxb7 Rxb7 27. Ke2 Bd8 28. Kd3 h6 29. Ra8 h5 30. b4 Be7 31. Rg8 Bf6 32. Rf8 Kc6 33. c4 { This move creates a passed pawn on the queenside.} 33... Rd7 34. Ra8 bxc4+ 35. Kxc4 Rc7 36. Ra7 {Now the rooks are exchanged. In a bishop endgame where the bishops are of the same color (light-square or dark-square), a passed pawn is a valuable asset, and usually leads to victory.} 36... Rxa7 37. Bxa7 Bd8 38. Be3 f6 39. b5+ Kd7 40. Kd5 Ba5 {Black has an additional problem. The bishop is "bad" in that the pawns are on the same colored squares, making them targets for the enemy bishop and reducing the space available for maneuvers.} 41. Ba7 { Now advancing the b-pawn would be a mistake. 41.b6 Bb4 42.b7 Kc7 43. Ke6 Kxb7 44.Kf7 Bc5 45.Bd2 Kc6 46.Kxg7 d5 47.Kxf6 dxe4 48.Kxe5 e3 49.Be1 Bd6+ 50.Ke6 Bxh2 51.f6 Bd6 52.f7Bf8} 41... Bb4 42. Bb8 Bc5 43. g3 {Black is in zugzwang. Any move will lead to a loss. But if it were possible to just "pass", there would be no way for White to make progress.} 43... Ke7 44. Kc6 g6 45. fxg6 { Now there are two passed pawns.} 45... f5 { Here Fischer brought the game to a quick close with a nifty sacrifice.} 46. Bxd6+ {Black resigned. Resistance would be futile.} 46... Bxd6 47. g7 Kf7 48. Kxd6 Kxg7 49. b6 fxe4 50. b7 e3 51. b8=Q 1-0