The Semi-Tarrasch Defense, Endgame Variation is a variation of the Queen's Gambit Declined, catalogued as ECO D41. The line runs 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 dxe4 8. Qxd8+, reaching the position shown below after 15 half-moves.
Black holds the centre with pawns on e4. Development is level at two minor pieces each, and White is up eight points of material. It is Black to move after eight moves. The c- and d-files files are fully open.
On the Queen's Gambit Declined generally: A solid and respected response to the Queen's Gambit. Black maintains a strong central presence.
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The Semi-Tarrasch Defense, Endgame Variation goes 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 dxe4 8. Qxd8+. It is a variation of the Queen's Gambit Declined and is catalogued as ECO D41.
The Semi-Tarrasch Defense, Endgame Variation is ECO D41. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Queen's Gambit Declined.
Stockfish evaluates the position after 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 dxe4 8. Qxd8+ at +0.23 at depth 18, which is balanced. 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.
Black holds the centre with pawns on e4. Development is level at two minor pieces each, and White is up eight points of material. It is Black to move. The c- and d-files files are fully open.