Chess puzzle (Advantage)
Opening: Nimzo-Indian_Defense, Nimzo-Indian_Defense_Normal_Line
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c6 5. Nf3 d5 6. Bd3 O-O 7. O-O b6 8. Ne5
Ba6 9. a3 Bd6 10. Nf3 Nbd7 11. cxd5 cxd5 *
Position (FEN): r2q1rk1/p2n1ppp/bp1bpn2/3p4/3P4/P1NBPN2/1P3PPP/R1BQ1RK1 w - - 0 12
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1145
Best move: Bxa6