Chess puzzle (Equality)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Qf3 Qxg5 7. Bxd5 Nd4
8. Qxf7+ Kd8 9. O-O Nxc2 10. d4 Qe7 11. Qf3 Nxa1 12. Bxb7 Bxb7 *
Position (FEN): r2k1b1r/pbp1q1pp/8/4p3/3P4/5Q2/PP3PPP/nNB2RK1 w - - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1443
Best move: Qxb7