The Tarrasch Variation, Guimard Defense, Thunderbunny Variation is a variation of the French Defense, catalogued as ECO C03. The line runs 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 dxe4 5. Nxe4 e5, reaching the position shown below after 10 half-moves.
Both sides have pawns in the centre (White on d4, Black on e5), and one pawn capture is available, so the structure has not settled yet. Development is level at one minor pieces each. It is White to move after five moves.
On the French Defense generally: A solid defense where Black builds a strong pawn chain. Leads to strategic middlegames with clear plans.
You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.
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The Tarrasch Variation, Guimard Defense, Thunderbunny Variation goes 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 dxe4 5. Nxe4 e5. It is a variation of the French Defense and is catalogued as ECO C03.
The Tarrasch Variation, Guimard Defense, Thunderbunny Variation is ECO C03. ECO codes group openings by their move order, so nearby codes cover closely related lines of the French Defense.
Stockfish evaluates the position after 1. e4 e6 2. d4 d5 3. Nd2 Nc6 4. c3 dxe4 5. Nxe4 e5 at +0.38 at depth 18, which is a slight pull for White, within normal opening margins. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Both sides have pawns in the centre (White on d4, Black on e5), and one pawn capture is available, so the structure has not settled yet. Development is level at one minor pieces each. It is White to move.