Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. e4 g6 2. h4 h5 3. d4 d5 4. e5 e6 5. Nc3 c5 6. Nf3 Nc6 7. Bb5 Bd7 8. Ng5 f6
9. exf6 Qxf6 10. dxc5 Bxc5 11. O-O a6 12. Bd3 Ne5 13. Be2 Nh6 14. Na4 *
Position (FEN): r3k2r/1p1b4/p3pqpn/2bpn1Np/N6P/8/PPP1BPP1/R1BQ1RK1 b kq - 5 14
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1600
Best move: Bxa4