Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Old_Sicilian
Moves: 1. e4 c5 2. Nf3 Nc6 3. c3 g6 4. d4 d5 5. e5 Bg4 6. Bb5 cxd4 7. cxd4 Nh6 8. h3
Bxf3 9. Qxf3 Nf5 10. Be3 Bg7 11. g4 Nh4 12. Qg3 e6 13. g5 Nf5 14. Qg2 Qb6 15.
Nc3 Nxd4 16. Ba4 Bxe5 17. O-O-O Ne2+ 18. Nxe2 *
Position (FEN): r3k2r/pp3p1p/1qn1p1p1/3pb1P1/B7/4B2P/PP2NPQ1/2KR3R b kq - 0 18
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 741
Best move: Qxb2#