Chess puzzle (Advantage)
Opening: Bird_Opening, Bird_Opening_Other_variations
Moves: 1. f4 e6 2. Nf3 Nf6 3. g3 d5 4. Bg2 Bc5 5. d4 Bd6 6. O-O O-O 7. Be3 Ne4 8. c3
f5 9. Ng5 Nxg5 10. fxg5 Qe8 11. Qd2 Qh5 12. Bf3 Qg6 13. a4 c6 14. Bg2 Nd7 15.
b3 e5 16. dxe5 Nxe5 17. Bf4 Bd7 18. Bxd5+ *
Position (FEN): r4rk1/pp1b2pp/2pb2q1/3BnpP1/P4B2/1PP3P1/3QP2P/RN3RK1 b - - 0 18
Black to move.
Themes:  Middlegame  
Puzzle rating: 1238
Best move: cxd5