Chess puzzle (Checkmate)
Moves: 1. d4 c5 2. d5 e5 3. c4 d6 4. Nc3 Be7 5. e4 Bg5 6. h3 Bxc1 7. Rxc1 Nf6 8. Nf3
O-O 9. Be2 Ne8 10. g4 Nd7 11. Qd2 a6 12. Kd1 Rb8 13. h4 b5 14. Kc2 bxc4 15.
Bxc4 Nb6 16. Be2 c4 17. Rcg1 Bd7 18. g5 Na4 19. Nxa4 Bxa4+ 20. Kc1 Qb6 21. Bxc4
Rc8 22. Qc3 Qxf2 23. Rh2 Qc5 24. b3 Bb5 25. Rc2 Nc7 26. Kb2 Bxc4 27. Qxc4 Qe3
28. Rc3 Qf4 29. Qe2 g6 30. Rgc1 Nxd5 31. Rxc8 Ne3 32. Rxf8+ Kxf8 33. Rc8+ Kg7
34. Nd2 a5 35. Ra8 Ng4 36. Rxa5 h5 37. Rb5 Qg3 38. a4 Qxh4 39. a5 Qxg5 40. a6
Qd8 41. Qc4 Qa5 42. Nf3 Qxa6 43. Ng5 Ne3 44. Qxf7+ Kh6 45. Rb4 Qe2+ 46. Ka3
Nc2+ 47. Ka4 *
Position (FEN): 8/5Q2/3p2pk/4p1Np/KR2P3/1P6/2n1q3/8 b - - 6 47
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 993
Best move: Qa6#