Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Tarrasch_Defense
Moves: 1. d4 d5 2. Nf3 c5 3. c4 e6 4. Bf4 cxd4 5. cxd5 Qa5+ 6. Bd2 Qxd5 7. b3 Nf6 8.
g3 e5 9. Bg2 Bd6 10. O-O O-O 11. Ng5 Qb5 12. Ne4 Nxe4 13. Bxe4 Nc6 14. Qc2 Qxe2
15. Bxh7+ Kh8 16. Bd3 Qf3 17. Be4 Nb4 *
Position (FEN): r1b2r1k/pp3pp1/3b4/4p3/1n1pB3/1P3qP1/P1QB1P1P/RN3RK1 w - - 5 18
White to move.
Themes:  Opening  
Puzzle rating: 1800
Best move: Bxb4