Chess puzzle (Checkmate)
Moves: 1. e3 d6 2. h3 Nf6 3. a3 g6 4. d3 Bg7 5. g3 O-O 6. Bg2 c6 7. Qd2 Nbd7 8. Nc3
Nb6 9. b3 e5 10. Bb2 Be6 11. Nf3 Nfd5 12. Ne4 Nf6 13. Nh2 Nxe4 14. Bxe4 d5 15.
Bg2 Qd7 16. O-O-O Bxh3 17. Bxh3 Qxh3 18. Nf3 Qe6 19. Ng5 Qg4 20. Nxh7 Rfe8 21.
Rh4 Qf5 22. Rdh1 f6 23. g4 Qe6 24. Kb1 Kf7 25. g5 f5 26. Nf6 Bxf6 27. gxf6 Kxf6
28. f4 Nd7 29. Qg2 Ke7 30. Qg5+ Kd6 31. Rh6 Rg8 32. Rg1 Nf8 33. Bxe5+ Kc5 34.
Bd4+ Kb5 35. Qg2 Ka6 36. Qd2 b6 37. Qb4 Kb7 38. Rh8 Rxh8 39. Bxh8 Nd7 40. Be5
Rg8 41. c4 Nxe5 42. fxe5 Qxe5 43. cxd5 Qxd5 44. Qe7+ Ka6 45. Kc2 c5 46. Qh7 Qe6
47. Qh3 g5 48. Qf3 g4 49. Qf4 Re8 50. Re1 Rh8 51. e4 Rf8 52. e5 Rg8 53. Rh1 g3
54. Rh7 g2 *
Position (FEN): 6r1/p6R/kp2q3/2p1Pp2/5Q2/PP1P4/2K3p1/8 w - - 0 55
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 887
Best move: Qa4#