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. e4 c5 2. f4 d5
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Book continuations win% from 1.5M rated games
Matching openings 3
- Sicilian Defense: McDonnell Attack, Toilet Variation B21 1 ply deeper
- Bird Opening: Dutch Variation, Batavo Gambit B21 2 plies deeper
- Sicilian Defense: McDonnell Attack, Tal Gambit B21 2 plies deeper
3810 catalogued lines in total · openings encyclopedia