Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Symmetrical_Variation
Moves: 1. d4 d5 2. Nf3 Nf6 3. g3 c6 4. Bg2 Bf5 5. O-O e6 6. c4 Be7 7. b3 O-O 8. Nc3
Qa5 9. Bb2 b5 10. cxd5 cxd5 11. Ne5 Rc8 12. Rc1 Nbd7 13. Nd3 a6 14. Re1 Ba3 15.
Bxa3 Qxa3 16. Qd2 Bxd3 17. Qxd3 *
Position (FEN): r1r3k1/3n1ppp/p3pn2/1p1p4/3P4/qPNQ2P1/P3PPBP/2R1R1K1 b - - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 1600
Best move: b4