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 e6 2. d4 Nf6 3. g3 d5 ◀ Undo move

♞ You have reached Catalan Opening E00 — the catalogued line ends exactly here.

Book continuations win% from 1.5M rated games

Bg2 18 63% · 166

Matching openings 19

Catalan Opening: Open Defense E01 1 ply deeper
Catalan Opening: Open Defense E02 2 plies deeper
Catalan Opening: Open Defense E04 3 plies deeper
Catalan Opening: Closed E06 3 plies deeper
Catalan Opening: Tarrasch Defense E01 4 plies deeper
Catalan Opening: Open Defense, Classical Line E05 4 plies deeper
Catalan Opening: Open Defense E03 5 plies deeper
Catalan Opening: Open Defense, Modern Sharp Variation E04 6 plies deeper
Catalan Opening: Closed E07 6 plies deeper
Catalan Opening: Open Defense, Alekhine Variation E03 7 plies deeper
Catalan Opening: Closed E08 7 plies deeper
Catalan Opening: Closed, Botvinnik Variation E07 9 plies deeper

…and 7 more lines run through this position — keep making moves to narrow it down.

3810 catalogued lines in total · openings encyclopedia