Chess puzzle (Advantage)
Opening: Four_Knights_Game, Four_Knights_Game_Italian_Variation
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bc5 4. Bc4 Nc6 5. a4 O-O 6. O-O d6 7. h3 Be6 8. Nd5
Na5 9. Ba2 Nxe4 10. c3 c6 11. Ne3 Bxa2 12. Rxa2 Nb3 *
Position (FEN): r2q1rk1/pp3ppp/2pp4/2b1p3/P3n3/1nP1NN1P/RP1P1PP1/2BQ1RK1 w - - 1 13
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1209
Best move: Qxb3