Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 b6 3. d3 Bb7 4. Nc3 Bb4 5. Be3 Bxc3+ 6. bxc3 d6 7. Be2 c5 8.
O-O e5 9. a4 a5 10. Rb1 Nd7 11. d4 Ba6 12. Bxa6 Rxa6 13. Qd3 Ra8 14. Qb5 Ne7
15. dxe5 dxe5 16. Nxe5 Ng6 17. Nxd7 Qxd7 18. Qxb6 O-O 19. Rfd1 Qxa4 20. Bxc5
Rfe8 21. Rb2 Qxe4 22. h3 Nh4 23. f3 Qg6 24. Qxg6 hxg6 25. Rb7 Nf5 26. Rdd7 Rac8
27. Bb6 a4 28. Ra7 Rxc3 29. Rxf7 Rxc2 30. g4 *
Position (FEN): 4r1k1/R4Rp1/1B4p1/5n2/p5P1/5P1P/2r5/6K1 b - - 0 30
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 899
Best move: Re1#