The Gunderam Gambit is a variation of the Semi-Slav Defense, catalogued as ECO D31. The line runs 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3, reaching the position shown below after 9 half-moves.
Both sides have pawns in the centre (White on d4, Black on e4), and one pawn capture is available, so the structure has not settled yet. Development is level at one minor pieces each, and Black is up a pawn of material. It is Black to move after five moves. Black has doubled pawns on the e-file.
On the Semi-Slav Defense generally: A complex defense combining ideas from the Slav and Queen's Gambit Declined.
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The Gunderam Gambit goes 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3. It is a variation of the Semi-Slav Defense and is catalogued as ECO D31.
The Gunderam Gambit is ECO D31. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Semi-Slav Defense.
Stockfish evaluates the position after 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f3 at -0.61 at depth 18, which is a small but real edge for Black. 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 e4), and one pawn capture is available, so the structure has not settled yet. Development is level at one minor pieces each, and Black is up a pawn of material. It is Black to move. Black has doubled pawns on the e-file.