Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Bc4 Nc6 3. Qh5 g6 4. Qf3 Nf6 5. d3 Bg7 6. c3 O-O 7. h4 d6 8. h5 Bg4
9. Qg3 Bxh5 10. f3 h6 11. a3 g5 12. Be3 d5 13. exd5 Nxd5 14. Bd2 a6 15. Bxd5
Qxd5 16. Rxh5 Qxd3 17. f4 exf4 18. Qxd3 Rae8+ 19. Ne2 Ne5 20. Qc2 Rd8 21. a4
Nd3+ 22. Kf1 Rfe8 23. Nd4 Nc5 24. b4 Ne4 25. Nf5 Re5 26. Nxh6+ Bxh6 27. Rxh6
Ng3+ 28. Kg1 Nf5 29. Rh5 f6 30. Qb3+ Kg7 31. b5 Kg6 32. Rh3 g4 33. Bxf4 Re1+
34. Kf2 Rde8 35. Re3 Nxe3 36. Bxe3 R1xe3 37. Na3 g3+ 38. Kf1 f5 39. Nc4 Re2 40.
Ra2 *
Position (FEN): 4r3/1pp5/p5k1/1P3p2/P1N5/1QP3p1/R3r1P1/5K2 b - - 3 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 820
Best move: Re1#