[Event "Tromso Olympiad analyse"] [Site "?"] [Date "2014.08.08"] [Round "6"] [White "Ivanisevic, Ivan"] [Black "Topalov, Veselin"] [Result "*"] [ECO "A29"] [Annotator "Pascal Losekoot"] [PlyCount "123"] 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. a4 a5 8. d3 Be7 9. Be3 Be6 10. Bxb6 cxb6 11. O-O O-O 12. e3 Rc8 13. Nb5 Bf6 14. Rc1 Re8 15. Nd2 Re7 16. Ne4 Rd7 17. Nxf6+ Qxf6 18. d4 exd4 19. exd4 g6 20. Rc3 Qf5 21. Re1 Rcd8 22. Bxc6 bxc6 23. Rxc6 Bd5 24. Rc3 Bb7 25. Qc1 Qd5 26. f3 Ba6 27. Re4 Bxb5 28. axb5 Qxb5 29. Rc8 Qf5 30. Qc6 Rxc8 31. Qxc8+ Kg7 32. Kg2 Rd6 33. Qc7 Qd5 34. Rf4 Rd7 35. Qxb6 Rb7 36. Qf6+ Kg8 37. Kh3 Rxb2 38. Qe5 Qxe5 39. dxe5 Re2 40. Rf6 Rxe5 41. g4 (41. Ra6 $1 {"Rook behind the pawn", a clearly surprised Topalov teached after the game, stunned by the fact that white missed this standard idea.} Rf5 {Een voorbeeldvariant} 42. f4 Kf8 43. Kg4 Ke7 44. Kf3 Kd7 45. Ke4 Kc7 (45... Rh5 46. g4 Rb5 47. f5 $11) 46. Kd4 Kb7 47. Rd6 $1 h5 48. Kc4 $11) 41... Re6 42. Rf4 Kf8 43. Ra4 Ra6 44. Kg3 Ke7 45. Kf4 Kd6 46. Kg5 Ra7 47. Kh6 f6 48. h4 Kc5 49. h5 (49. f4 $1 {was the suggestion by the commentating team.} Kb5 (49... f5 50. gxf5 gxf5 51. Kg5) 50. Ra1 a4 51. f5 gxf5 52. gxf5 a3 53. Ra2 Kb4 54. h5 Kc3 55. Rc2+ Kb3 56. Rc3+ Kb4 57. Rb3+ {draw}) 49... gxh5 50. gxh5 Kb5 51. Ra2 $1 {I believe this move draws. It reminds me of a study by Richard Reti, R vs pawn endgame. The idea is that the pawn is stopped at a3 and not at a2 like in the game.} (51. Ra1 $2 {was played in the game} a4 52. f4 a3 53. f5 a2 {This is the problem: the black pawn is stopped at a2 so the white rook can't move.} 54. Rc1 (54. Rb1+ {is no perpetual!} Kc6 55. Rc1+ Kd7 56. Rd1+ Ke7 $19 57. Re1+ Kf7 58. Ra1 Ra5 {zetdwang} 59. Kxh7 Rxf5) 54... a1=Q {and white resigned.}) 51... a4 52. f4 f5 $1 {There is no other way to prevent the stalemate idea.} (52... Kb4 53. f5 a3 54. Rb2+ $1 $11 Kc5 55. Ra2 Kd6 56. Rd2+ Ke7 57. Re2+ Kf7 {White seems to have run out of checks, but he's got a nice trick up his sleeve:} 58. Rg2 $1 {this "only-move" is the difference with having the rook at a1.} Ra5 59. Rg7+ Ke8 60. Ra7 $3 $11 {The return of the stalemate.}) 53. Kg5 Rf7 {Now it seems white is busted, but he has the important move Ra1 now.} (53... Kb4 54. Kxf5 Kb3 (54... Ra5+ 55. Ke6) 55. Ra1 a3 56. Ke6 {seems to draw}) (53... a3 $5 54. Kxf5 Kc4 $1 {The black king is switching his attention to the f-pawn, white has to play precise now:} (54... Kb4 55. Ke6 Kb3 56. Ra1 a2 57. f5 Ra6+ 58. Kf7 Rh6 59. Rf1 Rxh5 60. f6 Kb2 61. Ke6 $11) 55. Kf6 $1 (55. Ke6 $2 {Loses now:} Ra6+ 56. Kf7 Kd5 57. Kg7 Ra7+ 58. Kf6 Ke4 59. f5 Ra6+ 60. Kg7 Kxf5 61. Kxh7 Kg5) 55... Kd4 (55... Kb3 56. Ra1 Kb2 57. Rf1 a2 58. f5 $11) 56. f5 Ke4 57. h6 Ra6+ 58. Kg7 Kxf5 59. Rf2+ $1 Kg5 60. Rg2+ $11) 54. Ra1 $1 Kb4 (54... Ka5 55. h6 Kb4 56. Rb1+ {is pretty much the same as in the main line.}) 55. Rb1+ {The point is that black can't advance his passed a-pawn} Kc3 56. Ra1 Kb3 57. Rb1+ Kc2 58. Ra1 Ra7 {So he has to give up the f-pawn at a certain moment.} (58... Kb3 59. Rb1+ {etc} Ka3 60. h6 Ka2 61. Rb8 a3 62. Rb6 Ka1 63. Rb8 a2 64. Rb6 $11) 59. Kxf5 Kb2 60. Rf1 a3 61. Ke6 a2 62. f5 $11 *

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