Chess puzzle (Advantage)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Advance_Variation
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Bxd3 6. Qxd3 Nd7 7. Bg5 Qb6 8. b3
Be7 9. Bd2 Bb4 10. c3 Bf8 11. Na3 *
Position (FEN): r3kbnr/pp1n1ppp/1qp1p3/3pP3/3P4/NPPQ1N2/P2B1PPP/R3K2R b KQkq - 2 11
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1258
Best move: Bxa3