Opening explorer
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 d5 2. c4 e6 3. Nc3 c6 4. e4
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♞ You have reached Semi-Slav Defense: Marshall Gambit D31 — the catalogued line ends exactly here.
Book continuations win% from 1.5M rated games
Matching openings 5
- Semi-Slav Defense: Gunderam Gambit D31 2 plies deeper
- Semi-Slav Defense: Marshall Gambit, Forgotten Variation D31 4 plies deeper
- Semi-Slav Defense: Marshall Gambit, Main Line D31 4 plies deeper
- Semi-Slav Defense: Marshall Gambit, Tolush Variation D31 11 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia