Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Bb4 5. Qc2 O-O 6. e3 c5 7. Bd3 Nbd7 8. Nf3
a6 9. Ne5 b6 10. Nxd7 Bxd7 11. Bxf6 Qxf6 12. Bxh7+ Kh8 13. Bd3 dxc4 14. Bxc4
Bc6 15. f3 cxd4 16. exd4 Qxd4 17. Be2 Qh4+ 18. g3 Qf6 19. O-O-O Rac8 20. Qb3 a5
21. Kb1 Bxc3 22. Qxc3 Be4+ 23. fxe4 Rxc3 24. bxc3 Qxc3 25. h4 Qb4+ 26. Ka1 Qxe4
27. Bd3 Qe5+ 28. Kb1 Rc8 29. h5 Qxg3 30. Rhg1 Qe5 31. Rge1 Qf6 32. Rf1 Qe7 33.
Rh1 Rc3 34. h6 g6 35. h7 Qb4+ 36. Ka1 Qa3 37. Bxg6 Rg3 38. Rd8+ Kg7 39. h8=Q+
Kxg6 40. Rg8+ Kf5 41. Rf1+ Rf3 42. Qh5+ Ke4 43. Rxf3 *
Position (FEN): 6R1/5p2/1p2p3/p6Q/4k3/q4R2/P7/K7 b - - 0 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 990
Best move: Qc1#