Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. Be2 b6 7. O-O Bb7 8. c3
Nbd7 9. Nbd2 Ne4 10. a4 a5 11. Bh2 e5 12. Nxe4 Bxe4 13. Nd2 Bb7 14. Bf3 Qc8 15.
Qb3 Re8 16. Bd5 Bxd5 17. Qxd5 Nf6 18. Qc6 Qd7 19. Qb5 Qe7 20. d5 Bh6 21. Qc4
Qd7 22. Nb1 e4 23. Na3 Re7 24. Nb5 Qf5 25. Rad1 Rae8 26. Qc6 Rd7 27. Rd4 g5 28.
Rdd1 g4 29. Nd4 Qg6 30. h4 Rde7 31. Bg3 Nh5 32. Ne2 Qf5 33. Rd4 Bg7 34. Rdd1
Be5 35. Bxe5 Qxe5 36. g3 Qf5 37. Nf4 Nxf4 38. gxf4 g3 39. Kg2 gxf2 40. Kxf2 Kh8
41. Rg1 Qh5 42. Rde1 *
Position (FEN): 4r2k/2p1rp1p/1pQp4/p2P3q/P3pP1P/2P1P3/1P3K2/4R1R1 b - - 4 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 948
Best move: Qf3#