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Walk any move order through the catalog: pick a book continuation and watch the board, or open the matching ECO lines on the side. By default move orders are strict — flip the toggle to group by position and pull in transpositions.
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5
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♞ You have reached Queen's Gambit Declined: Semi-Tarrasch Defense D40 — the catalogued line ends exactly here.
Book continuations win% from 1.5M rated games
Matching openings 9
- Queen's Gambit Declined: Semi-Tarrasch Defense D41 1 ply deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense D41 3 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation D41 3 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation D41 3 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense D41 5 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation D41 5 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line D42 5 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense, Endgame Variation D41 7 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia