Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bd3 Bd6 6. Nf3 O-O 7. h3 Re8+ 8.
Ne2 c5 9. Kd2 c4 10. Bxc4 dxc4 11. c3 Nc6 12. b3 cxb3 13. axb3 Bf5 14. Ng3 Ne4+
15. Nxe4 Bxe4 16. Re1 Bxf3 17. Qxf3 Rxe1 18. Kxe1 Qe7+ 19. Kf1 Re8 20. Be3 Qe4
21. Qd1 a6 22. Kg1 f5 23. Qh5 g6 24. Qg5 f4 25. Bd2 f3 26. Re1 Qxe1+ 27. Bxe1 *
Position (FEN): 4r1k1/1p5p/p1nb2p1/6Q1/3P4/1PP2p1P/5PP1/4B1K1 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 839
Best move: Rxe1#