Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Bc4 d6 8. f3
O-O 9. Bb3 a6 10. Qd2 Bd7 11. O-O-O b5 12. g4 a5 13. Kb1 a4 14. Nxc6 Bxc6 15.
Bd5 Nxd5 16. Nxd5 e6 17. Nb4 Bb7 18. a3 d5 19. exd5 exd5 20. Nxd5 Bxd5 21. Qxd5
Qf6 22. Bd4 Qa6 23. Bxg7 Kxg7 24. h4 b4 25. Qd4+ Kg8 26. Qxb4 Rfb8 27. Qd4 Rb5
28. Ka1 Rab8 29. Rb1 Qb7 30. Rhf1 Rd5 31. Qe4 Qc6 32. h5 Re8 33. Qb4 Qxc2 34.
hxg6 hxg6 35. Rfc1 Qe2 36. Rc3 Rd1 37. Qxa4 Rxb1+ 38. Kxb1 Rd8 39. Ka2 Rb8 40.
Qc4 *
Position (FEN): 1r4k1/5p2/6p1/8/2Q3P1/P1R2P2/KP2q3/8 b - - 4 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 964
Best move: Qxb2#