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. e4 c5 2. Nc3 Nc6 3. g3 g6 ◀ Undo move

♞ You have reached Sicilian Defense: Closed B24 — the catalogued line ends exactly here.

Book continuations

Bg2 8

Matching openings 9

Sicilian Defense: Closed B24 2 plies deeper
Sicilian Defense: Closed B25 4 plies deeper
Sicilian Defense: Closed B25 5 plies deeper
Sicilian Defense: Closed B26 5 plies deeper
Sicilian Defense: Closed, Botvinnik Defense, with f4 B25 6 plies deeper
Sicilian Defense: Closed, Botvinnik Defense, with Nge2 B25 6 plies deeper
Sicilian Defense: Closed, Smyslov Variation B24 7 plies deeper
Sicilian Defense: Closed, Botvinnik Defense, Edge Variation B25 8 plies deeper

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

3810 catalogued lines in total · openings encyclopedia