[Event "Buenos Aires"] [Site "?"] [Round "0"] [White "Petrov"] [Black "Grau"] [Result "1-0"] [ECO "D02"] [Opening "Queen's Pawn: 2.Nf3 Bf5"] 1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Qb3 Nc6 5. Bd2 Rb8 6. e3 a6 7. Bd3 Bxd3 8. Qxd3 Nb4 9. Bxb4 Bxb4+ 10. Nbd2 Nf6 11. O-O O-O 12. c5 Bxd2 13. Nxd2 c6 14. f4 Nd7 15. b4 f5 $2 {Although Black's situation is better than the previous example (his bad Bishop exchanged for White's good one is a point in his favour), he is still in an unenviable position, as the following play will confirm} 16. a4 Qc7 17. Rfc1 Ra8 18. b5 Rfb8 19. Nf3 axb5 20. axb5 Qd8 21. b6 Rxa1 22. Rxa1 h6 (22... Ra8 23. Ra7 Rxa7 24. bxa7 Qa8 25. Qa3 Kf8 26. Qa5) 23. Ra7 Kf7 24. Qe2 g6 25. Nd2 Nf6 26. Nb3 Ke8 27. Na5 Qc8 28. Qa2 Nd7 {Everything is guarded, and it looks as though Black can hold the game. He is terribly cramped, but the lack of space is less serious than was the case in Capablanca v Treybal game, simply because more pieces have been exchanged. Nevertheless, White has virtually a forced win} 29. Qf2 Nf6 30. Qh4 Ng8 { The only way to keep the Queen out} 31. g4 Kf7 (31... fxg4 32. Qxg4 Kf7 33. f5 $1 {The White Queen forces entry in every variation}) 32. g5 $1 { An uncommonly fine move, which by controlling f6, cuts off the Knight from d7} 32... h5 33. Qf2 Ke8 34. Qa2 Ne7 (34... Kd8 35. Nxb7+ Rxb7 36. Ra8 Rb8 37. Rxb8 Qxb8 38. Qa7 Kc8 39. Qf7) 35. Nxb7 Rxb7 36. Rxb7 Qxb7 37. Qa7 1-0