Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nc3 e6 3. Bf4 Nf6 4. e3 Bb4 5. Nf3 O-O 6. Bd3 c5 7. dxc5 Nbd7 8.
O-O Bxc3 9. bxc3 Nxc5 10. c4 Nxd3 11. cxd3 dxc4 12. dxc4 b6 13. Rc1 Bb7 14. c5
Rc8 15. cxb6 Qxb6 16. Rb1 Qc6 17. Qd4 a5 18. Qa7 Ba8 19. Qxa5 Ne4 20. h3 Rfd8
21. Rfd1 Re8 22. Ne5 Qc2 23. Nd3 Nc3 24. Ne1 Qe2 25. Rdc1 Nxb1 26. Rxb1 Bd5 27.
a4 Ba2 28. Ra1 Red8 29. Nf3 Rd5 30. Qb4 h6 31. Nd4 Qc4 32. Qxc4 Bxc4 33. Nf3 f6
34. e4 Rd3 35. a5 e5 36. Be3 Ra8 37. Nd2 Ba6 38. Rb1 Ra3 39. Nb3 Bc4 40. Nd2
Bd3 41. Rb3 Rxb3 42. Nxb3 Bc4 43. Nd2 Be6 44. Bb6 Kf7 45. Kf1 Ke8 46. Ke2 Kd7
47. Ke3 Kc6 48. f4 Kb5 49. fxe5 fxe5 50. Nf3 Rc8 51. Nxe5 Rc3+ 52. Kf4 *
Position (FEN): 8/6p1/1B2b2p/Pk2N3/4PK2/2r4P/6P1/8 b - - 2 52
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1002
Best move: g5#