Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8.
O-O Bxc3 9. d5 Ne7 10. bxc3 O-O 11. Qd4 Nf6 12. Bg5 Ng6 13. d6 cxd6 14. Qxd6
Qb6 15. Qd3 a6 16. Rab1 Qc6 17. Nd4 Qd6 18. f4 b5 19. Bb3 Bb7 20. Qc2 Rae8 21.
Rbd1 Qb6 22. Kh1 Ne4 23. f5 Nxg5 24. fxg6 Qxg6 25. Qf2 Ne4 26. Qf4 d5 27. Nf5
Nxc3 28. Nd6 Nxd1 29. Nxe8 Rxe8 30. Rxd1 Qe4 31. Qf2 a5 32. Rf1 Qe6 33. Qa7 Bc6
34. Qxa5 Qe2 35. Rg1 d4 36. Qc7 Qxg2+ 37. Rxg2 *
Position (FEN): 4r1k1/2Q2ppp/2b5/1p6/3p4/1B6/P5RP/7K b - - 0 37
Black to move.
Themes: Pin Endgame Mate in 1 
Puzzle rating: 949
Best move: Re1#