Chess opening · ECO D40
Queen's Gambit Declined: Semi-Tarrasch Defense
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1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5
Queen's Gambit Declined: Semi-Tarrasch Defense is catalogued under ECO code D40. It is reached after 4 moves (8 half-moves): 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5. After the last move it is White to play. White opens 1. d4. It is a named variation of the Queen's Gambit Declined, which has 198 catalogued lines in total. 1 deeper line continue from here, listed below.
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More Queen's Gambit Declined lines
- Queen's Gambit Declined: Tarrasch DefenseD32
- Queen's Gambit Declined: Ragozin DefenseD38
- Queen's Gambit Declined: Been-Koomen VariationD50
- Queen's Gambit Declined: Exchange VariationD35
- Queen's Gambit Declined: Harrwitz AttackD37
- Queen's Gambit Declined: Modern VariationD50
- Queen's Gambit Declined: Charousek VariationD31
- Queen's Gambit Declined: Normal DefenseD35