Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 a6 6. Nf3 Qa5 7. Bd2 Qd8 8. Bc4
e6 9. O-O b5 10. Bb3 Bb7 11. d5 exd5 12. exd5 Be7 13. Bg5 O-O 14. Re1 h6 15.
Bh4 Nbd7 16. a4 b4 17. Ne4 Nxe4 18. Rxe4 Bxh4 19. Rxb4 Nc5 20. Rxh4 Nxb3 21.
Qxb3 Rb8 22. Rb4 Qd7 23. Rd1 Rfc8 24. h3 Qc7 25. Nd4 a5 26. Rb5 Ba6 27. Rxb8
Rxb8 28. Qc3 Qb6 29. Rd2 Bb7 30. Nb5 Rc8 31. Qg3 Ba6 32. Nxd6 Rd8 33. Nf5 Qf6
34. Qc7 Re8 35. Ne3 Bc8 36. Qxa5 Qd6 37. b4 Bb7 38. Qc5 Qd7 39. b5 Rc8 40. Qd4
Rd8 41. b6 Qd6 42. a5 Re8 43. Nc4 *
Position (FEN): 4r1k1/1b3pp1/1P1q3p/P2P4/2NQ4/7P/3R1PP1/6K1 b - - 2 43
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 838
Best move: Re1#