Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nf3 Nc6 5. Nbd2 cxd4 6. exd4 Bg4 7. c3 e6 8.
Qb3 Bxf3 9. Nxf3 Qc8 10. Bd3 Be7 11. O-O O-O 12. Rfe1 Na5 13. Qd1 Nc4 14. Qe2
a6 15. Ne5 b5 16. a4 Rb8 17. axb5 axb5 18. h3 Nd6 19. Ra7 Rb7 20. Ra6 Nfe4 21.
f3 Nf6 22. Rea1 b4 23. Rc6 Qe8 24. Raa6 bxc3 25. bxc3 h6 26. Rxd6 Bxd6 27. Rxd6
Qa4 28. Ra6 Qb3 29. Bd2 Rfb8 30. Kh2 Rb6 31. Ra7 R6b7 32. Ra5 Qb2 33. Nc6 Rc8
34. Ne5 Rbb8 35. Qe3 Ra8 36. Rxa8 Rxa8 37. Ng4 Nxg4+ 38. hxg4 Ra2 39. Qf4 Qxd2
*
Position (FEN): 6k1/5pp1/4p2p/3p4/3P1QP1/2PB1P2/r2q2PK/8 w - - 0 40
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1152
Best move: Qb8#