Polish Opening: Outflank Variation is a chess opening with the ECO code A00, part of the Polish Opening family. It goes 1. b4 c6. White opens with 1. b4 (the Polish move) and Black answers 1... c6. After 2 moves it is White to move. The lesson on the board explains every move of the line and lets you play it yourself; it is free.
White starts with 1.b4, an offbeat flank move. The idea is Bb2 aiming at e5 and space on the queenside.