Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 b6 5. c3 Bb7 6. Nbd2 Nbd7 7. O-O Bd6 8. Re1
Ne4 9. c4 O-O 10. a3 f5 11. b4 a5 12. c5 Be7 13. Bb2 g5 14. Rc1 Ndf6 15. Ne5 g4
16. f3 Nxd2 17. Qxd2 gxf3 18. Nxf3 axb4 19. axb4 Ra2 20. Ra1 Rxa1 21. Rxa1 Ne4
22. Bxe4 fxe4 23. Ne5 Bg5 24. Rf1 Rxf1+ 25. Kxf1 Ba6+ 26. Ke1 Qf6 27. Qf2 Qg7
28. g3 h5 29. Nc6 Bd3 30. Ne5 Bb5 31. cxb6 cxb6 32. h3 Qc7 33. h4 Bh6 34. g4
Bf8 35. gxh5 Bxb4+ 36. Kd1 Qa7 37. Qg3+ Kf8 38. Qf4+ Ke8 39. Qf6 Qa4+ 40. Kc1
Be2 41. Qxe6+ Kd8 42. Qc6 *
Position (FEN): 3k4/8/1pQ5/3pN2P/qb1Pp2P/4P3/1B2b3/2K5 b - - 2 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1297
Best move: Qd1#