Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit

The Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit is a chess opening classified under ECO code B07 in the Semi-Open Games family, where Black responds to 1.e4 with something other than 1...e5, including the Sicilian Defense, Caro-Kann, and Pirc. It is reached after 7 moves: 1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Bc4 d5. The resulting position leaves white to move.