Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nc3 Nc6 3. Bc4 d6 4. f4 exf4 5. Nf3 Be6 6. Bb5 a6 7. Bxc6+ bxc6 8.
d4 Bg4 9. Bxf4 Bxf3 10. Qxf3 Be7 11. O-O Nf6 12. e5 Nd5 13. Nxd5 cxd5 14. Qxd5
O-O 15. exd6 Bxd6 16. Bxd6 Qxd6 17. Qxd6 cxd6 18. c4 Rfe8 19. b3 f6 20. d5 Kf7
21. Rae1 g6 22. Kf2 f5 23. Re2 Rxe2+ 24. Kxe2 Kf6 25. Re1 Re8+ 26. Kd2 Rxe1 27.
Kxe1 Ke5 28. Kd2 Kd4 29. g3 g5 30. a3 h5 31. Ke2 a5 32. a4 Kc5 33. Ke3 Kb4 34.
Kd4 Kxb3 35. c5 dxc5+ 36. Kxc5 f4 37. gxf4 gxf4 38. d6 f3 39. d7 f2 40. d8=Q
f1=Q 41. Qg8+ Kxa4 *
Position (FEN): 6Q1/8/8/p1K4p/k7/8/7P/5q2 w - - 0 42
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1714
Best move: Qa2#