Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O a6 5. Ba4 b5 6. Bb3 d6 7. h3 Ba7 8. Re1
Nf6 9. c3 O-O 10. d4 Bb7 11. Bg5 Re8 12. d5 Na5 13. Bc2 Nc4 14. b3 Nb6 15. Nbd2
Nbd7 16. Nf1 h6 17. Bh4 Nc5 18. N1h2 Qd7 19. Bxf6 gxf6 20. Nd2 Kf8 21. Qh5 Ke7
22. Ng4 Rh8 23. Qh4 Raf8 24. Re3 Kd8 25. Rf3 Kc8 26. Rxf6 h5 27. Ne3 Kb8 28. c4
Qc8 29. cxb5 Nd7 30. Rf3 Bd4 31. Rb1 axb5 32. a4 bxa4 33. bxa4 Bxe3 34. Rxe3
Ka8 35. Ra3 Nc5 36. a5 Ba6 37. Qg3 Rhg8 38. Qe3 f5 39. exf5 Bb7 40. a6 Bxd5 41.
a7 Rxg2+ 42. Kf1 Qd7 43. Rb8+ Rxb8 44. axb8=Q+ Kxb8 45. Be4 Bxe4 46. Nxe4 Rg7
47. Nxc5 dxc5 48. Qxc5 *
Position (FEN): 1k6/2pq2r1/8/2Q1pP1p/8/R6P/5P2/5K2 b - - 0 48
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 619
Best move: Qd1#