Chess puzzle (Checkmate)
Moves: 1. e4 Nf6 2. e5 Nd5 3. g3 Nb6 4. Bg2 d5 5. d4 h5 6. h4 Na6 7. Nd2 c5 8. c3 Bg4
9. f3 Bf5 10. Ne2 e6 11. Nf4 cxd4 12. cxd4 Nb4 13. O-O g5 14. hxg5 Qxg5 15. Ne2
Bc2 16. Qe1 Nd3 17. Ne4 dxe4 18. Bxg5 Nxe1 19. Rfxe1 Rg8 20. Bh4 e3 21. Rac1
Bd3 22. f4 Nd5 23. f5 Bb4 24. fxe6 fxe6 25. Nc3 Bxc3 26. bxc3 e2 27. c4 Ne3 28.
Bxb7 Rb8 29. Bc6+ Kf7 30. d5 Nf5 31. dxe6+ Kxe6 32. Bd5+ Kxe5 33. Bxg8 Rxg8 34.
Rc3 Ke4 35. c5 Nxh4 36. c6 Nf3+ 37. Kf2 Nxe1 38. c7 Rf8+ 39. Kxe1 Ke3 40. c8=Q
*
Position (FEN): 2Q2r2/p7/8/7p/8/2Rbk1P1/P3p3/4K3 b - - 0 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 993
Best move: Rf1#