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.
⚖ Grouping by position
Grouping by position: lines that reach this position by a different move order are included too.
1. d4 e6 2. e4 d5 3. exd5 exd5 4. Nc3 Nf6
◀ Undo move
Book continuations win% from 1.5M rated games
Matching openings 2
- French Defense: Exchange Variation, Svenonius Variation C01 1 ply deeper
- French Defense: Exchange Variation, Bogoljubow Variation C01 2 plies deeper
3810 catalogued lines in total · openings encyclopedia