Chess puzzle (Checkmate)
Moves: 1. e4 g6 2. Nf3 d6 3. Bc4 Bg7 4. O-O Nf6 5. Re1 O-O 6. Nc3 Nbd7 7. d3 Ng4 8. h3
Nge5 9. Nxe5 Nxe5 10. Bb3 Nc6 11. Bd2 Nd4 12. Bc4 a6 13. a3 Be6 14. Bxe6 Nxe6
15. Rb1 f5 16. exf5 Nd4 17. fxg6 hxg6 18. Ne2 Nf5 19. Rf1 e5 20. Ng3 Qd7 21.
Nxf5 Rxf5 22. Qg4 Kf7 23. Bc3 Rf8 24. Qe2 Ke7 25. f3 Kd8 26. Kh1 Bh6 27. Bd2 g5
28. b3 Qh7 29. Qe4 Kc8 30. a4 g4 31. Bxh6 gxh3 32. Bxf8 hxg2+ 33. Kxg2 Rg5+ 34.
Kf2 Qh2+ 35. Ke3 Qxc2 36. Qc4 Qh2 37. Rbc1 c6 38. Qe6+ Kb8 39. Qxd6+ Ka7 40.
Qc5+ Ka8 41. Qc4 Rg2 42. Ke4 *
Position (FEN): k4B2/1p6/p1p5/4p3/P1Q1K3/1P1P1P2/6rq/2R2R2 b - - 6 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1798
Best move: Qf4#