Chess puzzle (Equality)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6
8. Nc3 Nb4 9. d4 c6 10. dxe5 b5 11. Bb3 a5 12. a3 a4 13. Bxd5+ *
Position (FEN): r1bq1b1r/6pp/2p1k3/1p1BP3/pn6/P1N2Q2/1PP2PPP/R1B1K2R b KQ - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1986
Best move: Nxd5