Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nf3 c5 4. g3 cxd4 5. cxd5 exd5 6. Nxd4 Nf6 7. Bg2 Be6 8.
O-O Bc5 9. Bg5 Nc6 10. Nf3 Be7 11. e3 O-O 12. Nc3 h6 13. Bxf6 Bxf6 14. Ne2 Qc8
15. Nfd4 Bh3 16. Qb3 Bxg2 17. Kxg2 Rd8 18. Nf4 Nxd4 19. exd4 Bxd4 20. Rad1 Be5
21. Nxd5 Qc6 22. Kg1 Bf6 23. Nxf6+ Qxf6 24. Rxd8+ Rxd8 25. Qxb7 Rd2 26. Qa8+
Kh7 27. Qe4+ Kg8 28. Qe3 Rxb2 29. Qxa7 h5 30. Qa8+ Kh7 31. Qe4+ g6 32. a4 Qb6
33. Qd5 Qa7 34. a5 Re2 35. a6 Re6 36. Ra1 Kg7 37. Qb7 Qd4 38. Rb1 Re2 39. Qf3
Ra2 40. Rb7 Qc4 41. a7 Ra1+ 42. Kg2 *
Position (FEN): 8/PR3pk1/6p1/7p/2q5/5QP1/5PKP/r7 b - - 2 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 935
Best move: Qf1#