Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 c6 6. e3 Nbd7 7. cxd5 Nxd5 8.
Bg3 Bb4 9. Rc1 Qa5 10. Qb3 N7f6 11. a3 Bxc3+ 12. bxc3 Ne4 13. Bd3 Nexc3 14. O-O
Nb5 15. e4 Ndc7 16. a4 Nxd4 17. Nxd4 O-O 18. Bd6 Re8 19. e5 Nd5 20. Qc2 h6 21.
Nf3 Qd8 22. Rfd1 Bd7 23. Qc4 a6 24. Qe4 g6 25. Nh4 Qg5 26. Nf3 Qf5 27. Qh4 Qf4
28. Qh3 h5 29. Rc4 Qh6 30. Qg3 Kh7 31. Ng5+ Kg8 32. Bb1 b5 33. Rh4 a5 34. Rd3
Rec8 35. Rf3 Be8 36. Nxe6 *
Position (FEN): r1r1b1k1/5p2/2pBN1pq/pp1nP2p/P6R/5RQ1/5PPP/1B4K1 b - - 0 36
Black to move.
Themes:  Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 662
Best move: Qc1#