Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 d6 4. d3 Bg4 5. Be2 Nf6 6. Bg5 Be7 7. O-O h6 8. Bh4
g5 9. Bg3 Nh5 10. Nd5 Nxg3 11. fxg3 h5 12. Qd2 Bxf3 13. Rxf3 Nd4 14. Rff1 c6
15. Nxe7 Qxe7 16. Bd1 O-O-O 17. c3 Ne6 18. b4 a6 19. a4 d5 20. exd5 Rxd5 21. b5
Qc5+ 22. Kh1 cxb5 23. Rxf7 Rhd8 24. Be2 g4 25. axb5 Qxb5 26. Qh6 Qe8 27. Rf6
R5d6 28. c4 Rc6 29. Qe3 Nd4 30. Rxc6+ Nxc6 31. Qe4 Nd4 32. Rb1 Rd7 33. c5 Nxe2
34. Qxe2 Qe7 35. Rc1 Rc7 36. Qc2 Rc6 37. Qc3 b6 38. d4 exd4 39. Qxd4 Rxc5 40.
Qh8+ Kb7 41. Rxc5 *
Position (FEN): 7Q/1k2q3/pp6/2R4p/6p1/6P1/6PP/7K b - - 0 41
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 841
Best move: Qe1#