Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Bc4 e6 6. Nf3 Nf6 7. O-O Be7 8.
Qe2 Nc6 9. Rd1 Bd7 10. Nb5 Qb8 11. Qd3 Ne5 12. Nxe5 dxe5 13. Bg5 a6 14. Bxf6
Bxb5 15. Bxb5+ axb5 16. Bxe7 Kxe7 17. Qd7+ Kf8 18. Qxb5 g6 19. Rd7 b6 20. a3
Kg7 21. Rad1 Ra5 22. Qb4 Re8 23. R1d6 Qc8 24. Qxb6 Rc5 25. h3 Rc1+ 26. Kh2 Qc2
27. f3 Qb1 28. Rd2 Rh1+ 29. Kg3 Qe1+ 30. Qf2 Qc1 31. Rc2 *
Position (FEN): 4r3/3R1pkp/4p1p1/4p3/4P3/P4PKP/1PR2QP1/2q4r b - - 8 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 752
Best move: Qf4#