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. e4 g6 2. d4 Bg7 3. g3 c5 4. dxc5
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Book continuations win% from 1.5M rated games
Matching openings 1
- Pterodactyl Defense: Fianchetto, Rhamphorhynchus B06 1 ply deeper
3810 catalogued lines in total · openings encyclopedia