Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 cxd4 5. cxd4 Nc6 6. a3 f6 7. f4 fxe5 8. fxe5
Nge7 9. Nf3 Nf5 10. Bb5 Qb6 11. Nc3 a6 12. Ba4 Bd7 13. Ne2 Qa5+ 14. b4 Qb6 15.
g4 Nh6 16. Bxh6 gxh6 17. Qd2 O-O-O 18. Rc1 Kb8 19. O-O Rg8 20. h3 Bg7 21. Kh2
Rdf8 22. Bc2 Rh8 23. Nc3 h5 24. g5 Be8 25. Na4 Qa7 26. Nc5 Bf7 27. h4 Ne7 28.
Nd7+ Ka8 29. Nxf8 Bxf8 30. Ne1 Nc6 31. Rxf7 Nxd4 32. Ba4 Qb6 33. Rc8+ Ka7 34.
Ra8+ Kxa8 35. Qf4 Nf5 36. Qc1 Qf2+ 37. Ng2 Qg3+ 38. Kg1 Qxe5 39. Qc8+ Ka7 *
Position (FEN): 2Q2b1r/kp3R1p/p3p3/3pqnPp/BP5P/P7/6N1/6K1 w - - 2 40
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 670
Best move: Rxb7#