Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 d6 3. Nc3 Nbd7 4. e4 e5 5. dxe5 dxe5 6. Bg5 a6 7. Bc4 Bd6 8.
Qd2 O-O 9. O-O-O Nb6 10. Bb3 a5 11. a4 Qe7 12. Nf3 Be6 13. Nd5 Bxd5 14. exd5 e4
15. Rhe1 Rfe8 16. Nd4 Qe5 17. Bxf6 Qxf6 18. Nb5 Bf4 19. Re3 c6 20. dxc6 bxc6
21. Nd4 Bxe3 22. Qxe3 Nd5 23. Qg3 Qf4+ 24. Kb1 Qxg3 25. hxg3 Nb4 26. Re1 Rac8
27. Re2 c5 28. Nf5 c4 29. Ba2 g6 30. Nd6 Rcd8 31. Nxe8 *
Position (FEN): 3rN1k1/5p1p/6p1/p7/Pnp1p3/6P1/BPP1RPP1/1K6 b - - 0 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 882
Best move: Rd1#