Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 a6 6. e3 O-O 7. Bd3 dxc4 8. Bxc4
b5 9. Bd3 Bb7 10. O-O c5 11. dxc5 Bxc5 12. Be2 Qb6 13. Qc2 b4 14. Na4 Rc8 15.
Nxb6 Bxb6 16. Qb3 a5 17. a3 Bd5 18. Qa4 Bc6 19. Qb3 Bd5 20. Qd1 b3 21. Rc1 Nbd7
22. Nd4 a4 23. Bg5 Ne4 24. Be7 Bb7 25. Rxc8+ Rxc8 26. Bb5 Ndf6 27. Bxf6 gxf6
28. Bxa4 Kh8 29. Bxb3 Rg8 30. f3 Nc5 31. Bc2 e5 32. Nf5 Rd8 33. Qb1 Ne6 34. Rc1
Nf4 35. Rd1 Rg8 36. g4 Bxf3 37. Rd6 Bc5 38. Rxf6 Bxg4 39. Nh6 Bxe3+ 40. Kf1
Be2+ 41. Ke1 *
Position (FEN): 6rk/5p1p/5R1N/4p3/5n2/P3b3/1PB1b2P/1Q2K3 b - - 3 41
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1180
Best move: Rg1#