The Lion Defense: Lion's Jaw is a chess opening classified under ECO code B00 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 3 moves: 1. e4 d6 2. d4 Nf6 3. f3. The resulting position leaves black to move.
Resulting Position
1. e4 d6 2. d4 Nf6 3. f3
rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - 0 3Resulting Position