Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 cxd4 5. cxd4 Nc6 6. Nf3 a6 7. a4 Bb4+ 8. Bd2
Bxd2+ 9. Qxd2 Bd7 10. Bd3 Nge7 11. O-O Ng6 12. b4 O-O 13. Nc3 Nxb4 14. a5 Nxd3
15. Qxd3 Rc8 16. Rfb1 Rc7 17. Rb6 Bc6 18. Rab1 Qd7 19. Nd2 Ne7 20. Nb3 Nc8 21.
Nc5 Qe7 22. R6b4 Na7 23. N5a4 Nb5 24. Nb6 Nxc3 25. Qxc3 Bb5 26. Qh3 h6 27. Qb3
Qg5 28. Rxb5 axb5 29. Qxb5 Qd2 30. Nxd5 exd5 31. Qb6 Rc1+ 32. Rxc1 *
Position (FEN): 5rk1/1p3pp1/1Q5p/P2pP3/3P4/8/3q1PPP/2R3K1 b - - 0 32
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 1123
Best move: Qxc1#