[Event "2009-2010 Bundesliga"] [Site "Heidelberg GER"] [Date "2009.12.13"] [Round "6"] [White "Peter Acs"] [Black "Arkadij Naiditsch"] [Result "1/2-1/2"] [WhiteElo "2550"] [BlackElo "2685"] [ECO "E32"] [Opening "Nimzo-Indian: Classical Variation"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 6. Bg5 h6 7. Bxf6 Qxf6 8. Qa4+ Nc6 9. e3 O-O 10. Be2 Rd8 11. Nf3 Qg6 12. O-O Bh3 13. Ne1 Bf5 14. Rc1 Bf8 15. Qd1 Ne7 16. Nd3 c6 17. b4 a6 18. Na4 Nc8 19. Nac5 Nd6 20. Ne5 Qg5 21. Nf3 Qf6 22. Qb3 b5 23. a4 Nc4 24. Ra1 Be4 25. Ra2 Bxc5 26. dxc5 bxa4 27. Qxa4 a5 28. b5 cxb5 29. Qxb5 Rab8 30. Qa4 Rb4 31. Qd1 Bb1 32. Qxb1 Rxb1 33. Rxb1 Rc8 34. Bxc4 dxc4 35. Rxa5 Qf5 36. Rc1 Rxc5 37. Nd4 Qc8 38. Ra3 h5 39. Rac3 h4 40. h3 g5 41. Nb3 Rc7 42. Nd2 Qd7 43. Rxc4 Rxc4 44. Nxc4 Qc6 45. Rc2 f5 46. f3 Kg7 47. Kf1 g4 48. e4 gxh3 49. gxh3 f4 50. Rg2+ Kh6 51. Nd2 Qc1+ 52. Ke2 Qc5 53. Rg4 Qe3+ 54. Kd1 Qf2 55. e5 Qe3 56. Rxh4+ Kg7 57. Rg4+ Kf7 58. Rg5 Ke6 59. h4 Kd5 60. Rg2 Kd4 61. Re2 Qa3 62. Ke1 Kd3 63. Ne4 Qa1+ 64. Kf2 Qh1 65. Rd2+ Kc4 66. e6 Qh2+ 67. Kf1 Qh3+ 68. Kf2 Qh2+ 69. Kf1 Qh3+ {#d} 1/2-1/2