Chess puzzle (Checkmate)
Opening: Owen_Defense, Owen_Defense_Other_variations
Moves: 1. e4 b6 2. Nc3 Bb7 3. d4 e6 4. Nf3 Bb4 5. Bd2 Bxc3 6. Bxc3 Bxe4 7. Bc4 d5 8.
Bb5+ c6 9. Ba4 b5 10. Bb3 Nf6 11. Qe2 Qd6 12. O-O-O a5 13. a3 b4 14. axb4 axb4
15. Be1 c5 16. Qb5+ Nc6 17. Qxc5 Qf4+ 18. Bd2 *
Position (FEN): r3k2r/5ppp/2n1pn2/2Qp4/1p1Pbq2/1B3N2/1PPB1PPP/2KR3R b kq - 2 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1023
Best move: Ra1#