Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 h5 3. h3 e6 4. Nf3 Bd6 5. Ne5 Bxe5 6. Bxe5 f6 7. Bg3 Ne7 8. Nc3
a6 9. Qd2 Nf5 10. Bh2 Nc6 11. e4 Nfxd4 12. exd5 Qxd5 13. O-O-O Qg5 14. f4 Qh6
15. Kb1 Nb5 16. Nxb5 axb5 17. Bxb5 O-O 18. Bxc6 bxc6 19. Qc3 Bb7 20. Rhe1 Rae8
21. f5 e5 22. Qb3+ Kh8 23. Qxb7 Qg5 24. Re2 Qxf5 25. Qxc6 Ra8 26. Qxc7 Rfc8 27.
Qb6 Rab8 28. Qe3 Ra8 29. Red2 Qe6 30. b3 Qa6 31. a4 Rcb8 32. Ka2 Qe6 33. Rd6
Qf7 34. Bg1 Rxa4+ 35. Kb2 Raa8 36. Bf2 Qe8 37. Qe2 Qf7 38. Rd7 Qe6 39. Qxh5+
Kg8 40. R1d6 Qe8 41. Qg4 Qf8 42. Bc5 Rc8 43. b4 Rxc5 44. bxc5 Rb8+ 45. Kc1 Ra8
46. Qc4+ Kh8 47. Rb6 Ra1+ 48. Kb2 Qa8 49. Rbb7 *
Position (FEN): q6k/1R1R2p1/5p2/2P1p3/2Q5/7P/1KP3P1/r7 b - - 10 49
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1191
Best move: Qa3#