Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Rubinstein_Variation
Moves: 1. d4 e6 2. e4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ Qxf6 6. Nf3 h6 7. Be3 Bd6 8.
h4 Nd7 9. Bd3 b6 10. Be4 Rb8 11. Kf1 Ba6+ 12. Kg1 O-O *
Position (FEN): 1r3rk1/p1pn1pp1/bp1bpq1p/8/3PB2P/4BN2/PPP2PP1/R2Q2KR w - - 6 13
White to move.
Themes:  Middlegame  
Puzzle rating: 2012
Best move: Bg5