Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. g3 a6 4. Bg2 c6 5. Nc3 b5 6. a3 Bb7 7. c5 d5 8. e4 dxe4
9. Nxe4 Nxe4 10. Bxe4 Nd7 11. b4 Nf6 12. Bg2 a5 13. Bb2 axb4 14. axb4 Rxa1 15.
Qxa1 Be7 16. Nf3 O-O 17. O-O Nd5 18. Qa3 Qc7 19. Ne5 Ra8 20. Qb3 h6 21. Bxd5
exd5 22. Bc1 Bc8 23. h4 Bf5 24. Bf4 Qc8 25. Re1 Bf6 26. Qf3 Be4 27. Qe3 Qh3 28.
f3 Ra2 29. Re2 Ra1+ 30. Re1 Bxf3 31. Nxf3 Ra2 32. Nd2 Qf5 33. Kh2 g5 34. hxg5
hxg5 35. Be5 Qh7+ 36. Kg2 Bxe5 37. dxe5 g4 38. Qg5+ Kf8 39. e6 Qh3+ 40. Kf2
Qh2+ 41. Kf1 Qh1+ 42. Ke2 *
Position (FEN): 5k2/5p2/2p1P3/1pPp2Q1/1P4p1/6P1/r2NK3/4R2q b - - 6 42
Black to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 1574
Best move: Qf3#