[Event "Havana Olympiad"] [Site "?"] [Round "0"] [White "Fischer"] [Black "Gligoric"] [Result "1-0"] [ECO "C68"] [Opening "Spanish: Exchange, 4...dxc6"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O { White gains a tempo by threatening to win Black's e-pawn.} 5... f6 6. d4 Bg4 7. c3 {White offers a pawn to maintain his initiative after:} 7... exd4 { Black falls in with White's plans. He should play to hold e5 by 7...Bd6.} 8. cxd4 {The establishment of the pawn center (e4, e4) is the primary goal of many opening strategies. It limits the mobility of the enemy forces, and either pawn can advance with good effect.} 8... Qd7 {Black hopes to pressure White's d-pawn, but he has missed a tactic which will keep a strong initiative for White.} 9. h3 Be6 {It is no better to win White's d-pawn now than before. 9...Bh5 10.Ne5 Bxd1 11.Nxd7 Kxd7 12.Rxd1 leads to a good endgame for White.} 10. Nc3 {But now White's strong center will give him an attack whichever way Black castles.} 10... O-O-O 11. Bf4 {Now White will get an attack against Black's king, but waiting in the center wouldn't have worked because White could open things up by 11.d5.} 11... Ne7 {The losing move, as now he doesn't have time to keep White's knight out of his king position. 11... Bd6, trying to blunt White's bishop, was the best chance.} 12. Rc1 Ng6 13. Bg3 Bd6 14. Na4 Bxg3 {Now Black will have no way to dislodge White's knight from c5, making the attack a straightforward rout. He should have tried 14... Kb8. 14...Rhe8 15.d5 cxd5 16.Nb6+} 15. fxg3 Kb8 16. Nc5 Qd6 17. Qa4 Ka7 {Completely missing White's next move. He could have tried to hang on by 17... Bc8 18.Rc3 Nf8 although White's attack should win in the end.} 18. Nxa6 Bxh3 {Desperation. Try to find a clear win for White in all lines after 18... bxa6 19.Rxc6.} 19. e5 {Cutting Black's queen off from g3, which was Black's final, desparate hope. } 19... Nxe5 20. dxe5 fxe5 21. Nc5+ Kb8 22. gxh3 e4 23. Nxe4 Qe7 24. Rc3 b5 25. Qc2 1-0