Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nf3 Qa5 4. Nc3 c5 5. Be2 Nc6 6. d3 Bf5 7. O-O c4 8.
dxc4 Rd8 9. Bd2 Qc7 10. Nd5 Qb8 11. Re1 e6 12. Ne3 Bg6 13. c3 Be7 14. b4 Nf6
15. Nd4 Nxd4 16. cxd4 Rxd4 17. Qc1 Ne4 18. Bc3 Nxc3 19. Qxc3 Rh4 20. g3 Bf6 21.
Qc1 Bxa1 22. Qxa1 Re4 23. Qxg7 Qe5 24. Qxe5 Rxe5 25. Ng4 Rf5 26. c5 Kd8 27.
Rd1+ Kc7 28. Bb5 Rd8 29. Rc1 Rd2 30. a4 Bh5 31. Ne3 Rfxf2 32. Bf1 Bf3 33. b5
Rxh2 34. Bg2 Rdxg2+ 35. Nxg2 Rxg2+ 36. Kf1 Bd5 37. b6+ axb6 38. cxb6+ Kxb6 39.
Rc3 Ra2 40. Rc8 Rxa4 41. Rh8 Ra1+ 42. Kf2 Rh1 43. Rg8 Kc7 44. Ke3 b6 45. g4 b5
46. Kd2 Rg1 47. Rg7 e5 48. Kc3 h5 49. g5 Ra1 50. Rh7 Rh1 51. g6 Rf1 52. g7 Rf3+
53. Kb4 Kb6 54. g8=Q *
Position (FEN): 6Q1/5p1R/1k6/1p1bp2p/1K6/5r2/8/8 b - - 0 54
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 992
Best move: Rb3#