French Defense · C17

Winawer Variation, Advance Variation, Moscow Variation

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4

...Bb4 pins and usually trades for the c3-knight: Black wrecks White's queenside pawns and attacks them forever; White gets the bishop pair and kingside chances. White's knight on c3 is pinned against the king.

The first 4 moves, explained

• 1. e4 Stakes a claim in the centre, controlling d5, and frees the bishop and queen.
• 1... e6 Supports the centre, adding control of d5. Theory calls this the French Defense.
• 2. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
• 2... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.

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