Current position
Polish Defense
1.d4 b5
The Polish Defense starts with 1.d4 b5 and is catalogued under ECO A40, in the flank openings half of the book. The catalog indexes 2 lines inside it, grouped into 2 named variations, and the position after those moves has 1 playable continuation to walk from here.
Root edges show how often each move is played around your Elo. Use the arrow on a position to reveal the next replies.
Current setup
Move ideas
Takes central space with a protected pawn and frees the queen’s bishop.
Idea: Build a stable center that supports a broad positional setup.
Advances the b-pawn to gain queenside space and control new squares.
Idea: Prepare a fianchetto or discourage the opponent’s expansion on that wing.
Advances to e4 to claim central space and control nearby key squares.
Idea: Give the pieces room to develop behind a durable central foothold.
Develops the bishop to b7, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Waiting for Lichess game popularity.
Each line below is an indexed entry under Polish Defense. Open one to load it on the board and keep exploring from that position.
ECO groups openings by the structures they lead to, so these families tend to share plans with the Polish Defense.