[Event "Havana"] [Site "?"] [Round "0"] [White "Corzo"] [Black "Capablanca"] [Result "0-1"] [ECO "C25"] [Opening "Vienna: 2...Nc6 3.f4 exf4 4.Nf3"] 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 h6 {White's knigh t is trapped, but he hopes to get compensation by luring Black's king into the center.} 7. Nxf7 Kxf7 8. d4 d5 {Black is willing to give back a pawn or two to speed up his development and close the a2-g8 diagonal.} 9. exd5 { White would like to open the f-file by 9.Bxf4, but 9...Bb4 is a strong reply.} 9... Qe7+ {Black begins his counterattack.} 10. Kf2 g3+ 11. Kg1 Nxd4 { Black returns the piece to gain an attack on the a7-g1 diagonal where White's king has no room to breathe.} 12. Qxd4 {12.Bxf4 Qf6} 12... Qc5 13. Ne2 Qb6 { Very strong. White is hard pressed to defend against 14...Bc5. 13...Qxd4+ 14. Nxd4 Bc5.} 14. Qxb6 axb6 15. Nd4 Bc5 16. c3 Ra4 {Black threatens 17... Rxd4. This is why Black forced White to trade queens on b6.} 17. Be2 Bxd4+ 18. cxd4 Rxd4 19. b3 {White hopes to skewer Black's rooks on the a1-h8 diagonal.} 19... Nf6 20. Bb2 Rd2 21. Bh5+ Nxh5 { 21...Kg7 22.Bc3 Rc2 23.Be5 And White has counterplay.} 22. Bxh8 f3 {Black's exc hange sacrifice has let him keep a strong attack against White's king.} 23. gxf3 {23.Bc3 f2+ 24.Kf1 Bf5 25.Bxd2 Bd3+} 23... Nf4 24. Re1 Rg2+ 25. Kf1 Bh3 0-1