Chess puzzle (Checkmate)
Moves: 1. d4 c5 2. d5 e5 3. c4 d6 4. Nc3 Be7 5. g3 Bg5 6. Bg2 Bxc1 7. Rxc1 a6 8. a4 a5
9. e3 Ne7 10. h4 O-O 11. Nge2 Na6 12. O-O Nb4 13. Qd2 f5 14. Rce1 e4 15. Nf4
Ng6 16. Nxg6 hxg6 17. Ne2 Nd3 18. Rd1 Qf6 19. Nc3 Bd7 20. Qe2 Ne5 21. Rd2 Kf7
22. Ra1 Rh8 23. Kf1 g5 24. hxg5 Qxg5 25. Ke1 Rh2 26. Bf1 Nf3+ 27. Kd1 Nxd2 28.
Kxd2 Rah8 29. Re1 Qh5 30. Qxh5+ R8xh5 31. Ke2 f4 32. exf4 Bg4+ 33. Ke3 Bf3 34.
Nb5 Ke7 35. Nc3 Kd7 36. b3 Rh8 37. Nb1 Rh1 38. Nd2 Bg2 39. Bxg2 *
Position (FEN): 7r/1p1k2p1/3p4/p1pP4/P1P1pP2/1P2K1P1/3N1PB1/4R2r b - - 0 39
Black to move.
Themes: Hanging Piece Endgame Mate in 1 
Puzzle rating: 605
Best move: Rxe1#