Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 b5 8. cxb5 a6
9. Nf3 axb5 10. Bxb5 Qb6 11. Qb3 Ba6 12. O-O Bxb5 13. Qxb5 Qxb5 14. Nxb5 Nxe4
15. Bxe7 Re8 16. Nc7 Rxe7 17. Nxa8 Rb7 18. Rae1 Nf6 19. b3 Nbd7 20. Ng5 h6 21.
Ne4 Ra7 22. Nxf6+ Nxf6 23. Nb6 Rxa2 24. Nc4 Nxd5 25. Rd1 Bd4 26. Nxd6 Nc3 27.
Rde1 Ne2+ 28. Kh1 Rb2 29. Nc4 Ra2 30. f3 Nf4 31. g3 Nd3 32. Re8+ Kg7 33. Ne3 h5
34. h4 Kf6 35. g4 Kg7 36. g5 Nf2+ 37. Kg1 Nh3+ 38. Kh1 Nf4 39. Nc4 Nh3 40. Nd6
Nf2+ 41. Kg1 Ng4+ 42. Kh1 *
Position (FEN): 4R3/5pk1/3N2p1/2p3Pp/3b2nP/1P3P2/r7/5R1K b - - 12 42
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1109
Best move: Rh2#