Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. Nc3 Ngf6 6. d4 cxd4 7. Nxd4 g6
8. Be3 Bg7 9. O-O O-O 10. f4 Rc8 11. f5 Nc5 12. Nb3 Ncxe4 13. Nxe4 Nxe4 14. c3
e6 15. fxe6 fxe6 16. Rxf8+ Qxf8 17. Bxa7 Bh6 18. Qf1 Qe7 19. Qe2 d5 20. Be3
Bxe3+ 21. Qxe3 Rf8 22. Rf1 Rxf1+ 23. Kxf1 Qf6+ 24. Qf3 Qg5 25. Qh3 Qf4+ 26. Ke1
Qf2+ 27. Kd1 Qf1+ 28. Kc2 Qe2+ 29. Kc1 Nf2 30. Qf3 Nd3+ 31. Kb1 *
Position (FEN): 6k1/1p5p/4p1p1/3p4/8/1NPn1Q2/PP2q1PP/1K6 b - - 16 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1252
Best move: Qxb2#