Queen's Gambit Declined, Lasker Defense

The Lasker Defense grows from the Queen's Gambit Declined structure. After developing and castling, Black attacks White's bishop on g5 with ...h6. If the bishop retreats to h4, Black plays ...Ne4, moving the f6-knight to a central square.

...h6 and ...Ne4 prepare exchanges

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Starth6Bh4Ne4

...h6 advances with an attack on g5. The route and attack form one purposeful action.

Black makes the bishop decide

...h6 gains time against Bg5 before the knight leaves f6.

1. ...h6 advances with an attack on g5. The route and attack form one purposeful action.
2. The planned ...Ne4 maneuver takes the knight to the center and confronts the c3-knight, preparing simplification.

The knight on e4 offers exchanges of minor pieces, meaning bishops and knights. A common continuation has White's bishop capture on e7 and Black's queen recapture. With several pieces removed, White has fewer resources for building pressure against Black's king and the d5-pawn. This simplification does not force a draw; it merely reduces some tactical tension and makes the strengths and weaknesses of the pawn structure more prominent.

The simplification leaves a new structure

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White's pawns on c2 and c3 form a doubled pair, the concrete consequence of the b-pawn recapturing the knight on c3.

Two pairs of minor pieces have left the board

After Bxe7, ...Qxe7, cxd5, ...Nxc3, bxc3, and ...exd5, piece pressure is reduced and White has doubled pawns.

1. White's pawns on c2 and c3 form a doubled pair, the concrete consequence of the b-pawn recapturing the knight on c3.
2. ...c5 remains available as a break against d4. Exchanging pieces does not remove the need to challenge the center.