B00 · Rat Defense: Harmonist
Rat Defense: Fuller Gambit
1. e4 d6 2. f4 d5 3. exd5 Nf6
In the Rat Defense: Fuller Gambit, aim to understand the plans and pawn structures, not just memorize the first moves.
The Rat Defense: Fuller Gambit is a chess opening classified under ECO code B00. It is reached after the moves 1. e4 d6 2. f4 d5 3. exd5 Nf6: 6 moves in, with White to play.
It belongs to the Rat Defense 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 Rat Defense: Fuller Gambit 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 Rat Defense: Fuller Gambit? See where you go wrong.
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