Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bd3 Bg4 6. c3 e6 7. O-O Nf6 8. Bg5
Be7 9. Nbd2 O-O 10. Rc1 Rc8 11. Bb1 Bh5 12. Qb3 Na5 13. Qa4 a6 14. Ne5 b5 15.
Qc2 Bg6 16. Nxg6 hxg6 17. Nf3 Nc4 18. Ne5 Nxe5 19. dxe5 Nd7 20. Bxe7 Qxe7 21.
a3 Nxe5 22. Rfe1 Nc4 23. Qd3 Qf6 24. Qe2 Rfd8 25. Bd3 Nd6 26. Bb1 Nf5 27. h3 d4
28. Bxf5 gxf5 29. cxd4 Rxc1 30. Rxc1 Qxd4 31. b4 g6 32. Rc6 Qa1+ 33. Kh2 Qxa3
34. Qe1 Qa2 35. f3 Rd2 36. Rc8+ Kg7 37. Qe5+ f6 38. Qc7+ Kh6 39. Rh8+ Kg5 *
Position (FEN): 7R/2Q5/p3ppp1/1p3pk1/1P6/5P1P/q2r2PK/8 w - - 4 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 867
Best move: f4#