Chess puzzle (Checkmate)
Moves: 1. g3 g6 2. Bg2 Bg7 3. d3 d6 4. c3 c5 5. e4 Nc6 6. Nh3 e5 7. O-O f5 8. f4 Nf6
9. Nd2 O-O 10. Qb3+ Kh8 11. Nc4 fxe4 12. dxe4 Nxe4 13. Bxe4 Bxh3 14. Rd1 Qe7
15. Nxd6 Rad8 16. Bxc6 bxc6 17. Nf7+ Rxf7 18. Rxd8+ Qxd8 19. Qxf7 Qd1+ 20. Kf2
Qf1+ 21. Ke3 Qe1+ 22. Kd3 Bf1+ 23. Kc2 Qe4+ 24. Kb3 h5 25. fxe5 Bb5 26. a4 Bd3
27. Ra3 c4+ 28. Kb4 Qxe5 29. Ra1 Qd6+ 30. Ka5 Qc5+ 31. Ka6 *
Position (FEN): 7k/p4Qb1/K1p3p1/2q4p/P1p5/2Pb2P1/1P5P/R1B5 b - - 5 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 995
Best move: Qb6#