Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. c4 d5 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. Qc2 O-O 8.
O-O-O Nc6 9. e4 dxc4 10. e5 Nb4 11. Qe4 Bg5+ 12. Kb1 c6 13. Bxc4 a5 14. h4 Be7
15. g4 a4 16. g5 h5 17. Bd3 Nxd3 18. Rxd3 a3 19. b3 b6 20. Rc1 Bb7 21. Rdd1 Qd7
22. Qf4 Rfd8 23. Ne4 c5 24. Nf6+ Bxf6 25. gxf6 Bxf3 26. Qxf3 g6 27. dxc5 Qb5
28. c6 Qxe5 29. Rxd8+ Rxd8 30. c7 *
Position (FEN): 3r2k1/2P2p2/1p2pPp1/4q2p/7P/pP3Q2/P4P2/1KR5 b - - 0 30
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1075
Best move: Qb2#