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. c4 Nf6 2. d4 g6 3. g3 Bg7 ◀ Undo move

Book continuations win% from 1.5M rated games

Bg2 6

Matching openings 6

Grünfeld Defense: Counterthrust Variation E60 2 plies deeper
Neo-Grünfeld Defense: Exchange Variation D71 4 plies deeper
King's Indian Defense: Fianchetto Variation, Carlsbad Variation E62 6 plies deeper
King's Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line E64 6 plies deeper
King's Indian Defense: Fianchetto Variation, Debrecen Defense E67 6 plies deeper
King's Indian Defense: Fianchetto Variation, Lesser Simagin (Spassky) E62 8 plies deeper

3810 catalogued lines in total · openings encyclopedia