D02 · London System
London System: Poisoned Pawn Variation
1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3
In the London System: Poisoned Pawn Variation, aim to understand the plans and pawn structures, not just memorize the first moves.
The London System: Poisoned Pawn Variation is a chess opening classified under ECO code D02. It is reached after the moves 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3: 9 moves in, with Black to play.
It belongs to the London System family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
Club players rarely lose the London System: Poisoned Pawn Variation in the opening itself. They lose it a few moves later, when the plan behind the moves runs out: that is what reading your own games in this line shows you.
Play the London System: Poisoned Pawn Variation? See where you go wrong.
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