Current position
Slav Defense: Czech Variation, Classical System, Main Line
1.d4 d5 2.c4 c6
The Slav Defense starts with 1.d4 d5 2.c4 c6 and is catalogued under ECO D10, in the closed games half of the book. The catalog indexes 52 lines inside it, grouped into 43 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.
Mirrors White’s central claim and prevents an easy e4 expansion.
Idea: Establish a firm center and develop behind the pawn chain.
Advances the c-pawn to gain queenside space and control new squares.
Idea: Create useful wing space while keeping the central structure flexible.
Advances the c-pawn to gain queenside space and control new squares.
Idea: Create useful wing space while keeping the central structure flexible.
Develops the knight to f3, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Develops the knight to f6, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Develops the knight to c3, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Captures the pawn on c4 and changes the local pawn or piece balance.
Idea: Open lines in the queenside and reshape the center for the next phase.
Advances the a-pawn to gain queenside edge space and control new squares.
Idea: Create useful wing space while keeping the central structure flexible.
Develops the bishop to f5, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Advances to e3 to claim central space and control nearby key squares.
Idea: Give the pieces room to develop behind a durable central foothold.
Advances to e6 to claim central space and control nearby key squares.
Idea: Give the pieces room to develop behind a durable central foothold.
Captures the pawn on c4 and changes the local pawn or piece balance.
Idea: Remove an active defender and improve the moving piece’s influence.
Develops the bishop to b4, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Tucks the king away and activates the rook in a single move.
Idea: Finish kingside development so the central pieces can coordinate safely.
Tucks the king away and activates the rook in a single move.
Idea: Finish kingside development so the central pieces can coordinate safely.
Repositions the queen to e2, where it influences a new part of the board.
Idea: Coordinate threats carefully while avoiding unnecessary tempi against the queen.
Waiting for Lichess game popularity.
Each line below is an indexed entry under Slav Defense. Open one to load it on the board and keep exploring from that position.
19 more named lines sit inside this family — the tree above walks all of them.
ECO groups openings by the structures they lead to, so these families tend to share plans with the Slav Defense.