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. Move orders, not transpositions — exactly the paths over the board. Prefer the family trees? Every opening page has one.

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 ◀ Undo move

♞ You have reached Catalan Opening: Closed E06 — the catalogued line ends exactly here.

Book continuations

O-O 9

Matching openings 10

Catalan Opening: Closed E07 3 plies deeper
Catalan Opening: Closed E08 4 plies deeper
Catalan Opening: Closed, Botvinnik Variation E07 6 plies deeper
Catalan Opening: Closed E08 6 plies deeper
Catalan Opening: Closed E08 7 plies deeper
Catalan Opening: Closed E08 8 plies deeper
Catalan Opening: Closed E06 9 plies deeper
Catalan Opening: Closed E08 10 plies deeper
Catalan Opening: Closed, Sokolsky Variation E09 11 plies deeper

…and 1 more lines run through this position — keep making moves to narrow it down.

3810 catalogued lines in total · openings encyclopedia