The Alekhine Defense: Welling Variation 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. b3. The resulting position leaves black to move.
Resulting Position
1. e4 Nf6 2. e5 Nd5 3. b3
rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq - 0 3Resulting Position