Caro-Kann Defense, Advance Variation

In algebraic notation, e5 means column e and row 5. In the Advance Variation, White answers the attack on e4 by moving that pawn to e5. Together with the d4-pawn, it forms a pawn chain: diagonally connected pawns that protect one another. The chain controls more territory and closes much of the center.

Black commonly brings the c8-bishop to f5 before playing e6. This is a central Caro-Kann idea: the bishop remains outside the future pawn chain. Black then attacks the base and head of White's center with c5 and, in some lines, f6. These moves are pawn breaks because they make contact with opposing pawns and try to open lines.

e5 gains space and ...Bf5 prepares two distinct breaks

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Starte5Bf5Nf3e6

3.e5 chooses the Advance, closes the center, and makes Black seek pawn breaks.

White chooses to close, exchange, or support the center

The Advance Variation keeps both central pawns and gains space with e5.

1. 3.e5 chooses the Advance, closes the center, and makes Black seek pawn breaks.
2. 3.exd5 would choose the Exchange and produce a more open structure.
3. 3.Nc3 would support e4 and allow systems based on ...dxe4.

White's e5-pawn gives space, meaning that it controls squares and restricts Black's pieces, but it may also become a target. White must support it while bringing out the pieces and choose when to attack the f5-bishop. Black should not try to win it at any cost; enough active pieces are needed to pressure it without weakening the king.