Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. Nc3 e6 3. g3 d5 4. cxd5 exd5 5. d4 Bd6 6. Bg2 O-O 7. e3 Bg4 8.
Nge2 Qd7 9. O-O c6 10. Re1 Re8 11. f3 Bh3 12. Bh1 h5 13. Bd2 Na6 14. a3 Nc7 15.
Nc1 Bf5 16. b4 a5 17. bxa5 Rxa5 18. Qb3 Ra7 19. Qb2 Rea8 20. a4 b5 21. Nb3 b4
22. Ne2 Rxa4 23. Nc5 Bxc5 24. dxc5 Rxa1 25. Rxa1 Rxa1+ 26. Qxa1 Bd3 27. Nf4 Bb5
28. Bxb4 Na6 29. Qc3 Nxb4 30. Qxb4 Qa7 31. Qd4 Qa2 32. Qd1 Qc4 33. Kg2 Qxc5 34.
Qd2 g5 35. Nh3 Qc4 36. Qe1 g4 37. fxg4 Nxg4 38. Nf4 Nxe3+ 39. Qxe3 *
Position (FEN): 6k1/5p2/2p5/1b1p3p/2q2N2/4Q1P1/6KP/7B b - - 0 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1341
Best move: Qf1#