Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 d6 5. Nxd4 Be7 6. O-O Nf6 7. Nc3 O-O 8.
h3 Nxd4 9. Qxd4 c5 10. Qd1 Be6 11. Bxe6 fxe6 12. e5 dxe5 13. Qxd8 Raxd8 14. Re1
Bd6 15. Bg5 h6 16. Bh4 Rde8 17. Rad1 Bb8 18. Bg3 Nd5 19. Nxd5 exd5 20. Rxd5 b6
21. Bxe5 Rf5 22. f4 Rxf4 23. Bxf4 Rxe1+ 24. Kf2 Re8 25. Bxb8 Rxb8 26. Rd7 Ra8
27. Kf3 Kh7 28. h4 h5 29. Kf4 Kg6 30. Rd6+ Kh7 31. Kg5 Re8 32. Kxh5 Re2 33. g4
Rxc2 34. Rd7 Rxb2 35. Rxa7 c4 36. g5 Rg2 37. Rc7 b5 38. Rb7 c3 39. Rxb5 c2 40.
Rc5 *
Position (FEN): 8/6pk/8/2R3PK/7P/8/P1p3r1/8 b - - 1 40
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 840
Best move: g6#