Chess puzzle (Checkmate)
Opening: Benoni_Defense, Benoni_Defense_Old_Benoni
Moves: 1. d4 c5 2. e3 d5 3. Nf3 Nc6 4. Bd3 Bg4 5. Nbd2 cxd4 6. h3 dxe3 7. hxg4 exd2+
8. Bxd2 Nf6 9. Bb5 Qc7 10. Ne5 Qxe5+ 11. Be3 O-O-O 12. Qe2 d4 13. Bxc6 bxc6 14.
Qa6+ Kb8 15. O-O-O Qb5 16. Bf4+ Ka8 17. Rxd4 Qxa6 18. Rxd8+ Kb7 *
Position (FEN): 3R1b1r/pk2pppp/q1p2n2/8/5BP1/8/PPP2PP1/2K4R w - - 1 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 851
Best move: Rb8#