The Alekhine Defense: The Squirrel is a chess opening classified under ECO code B02 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 Nf6 2. e5 Nd5 3. c4 Nf4. The resulting position leaves white to move.
Resulting Position
1. e4 Nf6 2. e5 Nd5 3. c4 Nf4
rnbqkb1r/pppppppp/8/4P3/2P2n2/8/PP1P1PPP/RNBQKBNR w KQkq - 1 4Resulting Position