Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 d6 5. d3 O-O 6. Nf3 Nc6 7. O-O e5 8. Rb1
Be6 9. b4 Qd7 10. Re1 Bh3 11. Bh1 Nh5 12. Ng5 h6 13. Nxh3 Qxh3 14. Bg2 Qd7 15.
b5 Ne7 16. Bxb7 Kh7 17. Bg2 f5 18. Nd5 Ng8 19. a4 Rf7 20. Rf1 Raf8 21. a5 f4
22. Nc3 Ngf6 23. Nd5 Ng4 24. Bh3 Nhf6 25. Nxf6+ Bxf6 26. f3 h5 27. fxg4 hxg4
28. Bg2 Bg5 29. Bd2 Kg7 30. Bd5 Rf6 31. gxf4 exf4 32. Bc3 g3 33. hxg3 fxg3 34.
Bxf6+ Bxf6 35. Qd2 Qh3 36. e3 Bg5 37. Rxf8 Kxf8 38. Rf1+ Kg7 39. Rf7+ Kh6 40.
Qg2 Bxe3+ 41. Kf1 Qh4 42. Rf3 Bf4 43. Be4 Be5 44. Qd2+ Kg7 45. Qg2 Qg5 46. Bd5
Qc1+ 47. Ke2 Qb2+ 48. Kf1 Qa1+ 49. Ke2 Qa2+ 50. Kf1 Qb1+ 51. Ke2 Qc2+ 52. Kf1 *
Position (FEN): 8/p1p3k1/3p2p1/PP1Bb3/2P5/3P1Rp1/2q3Q1/5K2 b - - 23 52
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1446
Best move: Qd1#