Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 c5 5. c3 Qb6 6. Qc2 Nc6 7. Nd2 g6 8.
Ngf3 cxd4 9. exd4 Bg7 10. Bd3 O-O 11. O-O Re8 12. Rfe1 Be6 13. Nb3 Bg4 14. Nfd2
Qc7 15. h3 Rxe1+ 16. Rxe1 Bc8 17. Nc5 b6 18. Ncb3 a5 19. Re8+ Bf8 20. Bb5 Bb7
21. Rxa8 Bxa8 22. Nc1 Nb4 23. Qb3 Bh6 24. Qd1 Nc6 25. Ne2 Na7 26. Bd3 b5 27.
Nb3 b4 28. Nc5 Nc8 29. Qa4 Bf8 30. Nb3 bxc3 31. bxc3 Nd6 32. Qxa5 Qc8 33. Qa6
Bb7 34. Qa4 Ne4 35. Bxe4 dxe4 36. Nc5 Bxc5 37. dxc5 Qxc5 38. Qb4 Qd5 39. Nd4 f5
40. a4 f4 41. a5 e3 42. fxe3 *
Position (FEN): 6k1/1b3p1p/6p1/P2q4/1Q1N1p2/2P1P2P/6P1/6K1 b - - 0 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 945
Best move: Qxg2#