Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. b6 d6 6. Nc3 g6 7. Nf3 Bg7 8. Nd2
Nfd7 9. e4 Nxb6 10. Be2 O-O 11. O-O e6 12. dxe6 Bxe6 13. a4 Nc6 14. a5 Nc8 15.
Nc4 Nd4 16. Bf4 Re8 17. Re1 Rb8 18. Bf1 Rb4 19. Na3 Rxb2 20. Bxa6 Qxa5 21. Bxc8
Qxc3 22. Bxe6 Nxe6 23. Qxd6 Nxf4 24. Qxf4 Ra2 25. Nb5 Rxa1 26. Nxc3 *
Position (FEN): 4r1k1/5pbp/6p1/2p5/4PQ2/2N5/5PPP/r3R1K1 b - - 0 26
Black to move.
Themes: Hanging Piece Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 1129
Best move: Rxe1#