Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. c3 Bd6 5. Bg3 O-O 6. Nf3 h6 7. Nbd2 c5 8. Bd3
c4 9. Bc2 Nc6 10. b3 b5 11. a4 bxa4 12. bxc4 dxc4 13. Bxd6 Qxd6 14. Nxc4 Qc7
15. O-O Rd8 16. Rxa4 Bd7 17. Qa1 Ne7 18. Ra3 *
Position (FEN): r2r2k1/p1qbnpp1/4pn1p/8/2NP4/R1P1PN2/2B2PPP/Q4RK1 b - - 4 18
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1050
Best move: Qxc4