Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 d5 3. exd5 Nf6 4. d4 Nxd5 5. c4 Nf6 6. Nc3 Bb4 7. Bg5 h6 8.
Bxf6 Qxf6 9. Ne5 O-O 10. Be2 Nd7 11. Ng4 Qg6 12. O-O Bxc3 13. bxc3 Nf6 14. Ne5
Qg5 15. f4 Qf5 16. Bd3 Qh5 17. Qxh5 Nxh5 18. g4 Nf6 19. g5 hxg5 20. fxg5 Nh5
21. Rf3 f6 22. gxf6 gxf6 23. Ng4 f5 24. Ne5 Nf6 25. Raf1 b6 26. Rg3+ Kh8 27.
Rf4 Rg8 28. Rh4+ Nh7 29. Kf2 Rxg3 30. hxg3 Bb7 31. Nf3 Kg7 32. d5 Rd8 33. Bc2
Nf6 34. dxe6 Ng4+ 35. Ke2 Kf6 36. Rh5 Bxf3+ 37. Kxf3 Ne5+ 38. Ke2 Kxe6 39.
Bxf5+ Kf6 40. Bc2 Nxc4 41. Bb3 Re8+ 42. Kf3 Nd2+ 43. Kf4 *
Position (FEN): 4r3/p1p5/1p3k2/7R/5K2/1BP3P1/P2n4/8 b - - 5 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 856
Best move: Re4#