1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 Bg7 5. Qd2 h6 6. Bf4 c6 7. a4 g5 8. Be3 Ng4 9. h4 Nxe3 10. Qxe3 Qa5 11. hxg5 hxg5 12. Rxh8+ Bxh8 13. e5 dxe5 14. Qxg5 Bf6 15. Qg8+ Kd7 16. d5 cxd5 17. O-O-O d4 18. Bb5+ Nc6 19. Nd5 Kd6 20. Nxf6 exf6 21. Qf8+ Kc7 22. Qxf7+ Bd7 23. Qxf6 a6 24. Bxc6 Bxc6 25. f4 Re8 26. fxe5 Qxe5 27. Qxe5+ Rxe5 28. Nf3 Bxf3 29. gxf3 Rf5 30. Rd3 Kc6 31. Kd2 Kc5 32. c3 dxc3+ 33. Kxc3 Rf4 34. b3 b5 35. axb5 axb5 36. Kd2 Kb4?

36... Rf8!= is the only move to draw, per the Syzygy tablebase. The move played allows f4, after which the pawn can be supported by the white rook from f3, when it's all over. Also, only f8 provides enough checking distance (36... Rf7? 37. Ke3 Re7+ 38. Kf2 Rf7 39. Kg3 Rg7+ 40. Kh4 Rf7 41. Kg4 Rg7+ 42. Kf5 Rf7+ 43. Ke5 Re7+ 44. Kf6) .

37. Ke3 Rh4 38. f4 Rh1 39. f5 Rf1 40. Ke4 Kc5 41. Ke5 Re1+ 42. Kf6 b4 43. Kg5 Rg1+ 44. Kf4 Rf1+ 45. Rf3 Rc1 46. f6 Kd6 47. Kg5 Rc3 48. Rf4 Rg3+ 49. Kh4 Rg8 50. f7 Rf8 51. Kg5 Ke5 52. Rf1 Kd4 53. Kg6 Kc3 54. Rf3+ Kc2 55. Kg7

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Event information: Tournament report.

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