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 4. Bg2 Bg7 5. d3 d6
◀ Undo move
♞ You have reached Sicilian Defense: Closed B25 — the catalogued line ends exactly here.
Matching openings 6
- Sicilian Defense: Closed B25 1 ply deeper
- Sicilian Defense: Closed B26 1 ply deeper
- Sicilian Defense: Closed, Botvinnik Defense, with f4 B25 2 plies deeper
- Sicilian Defense: Closed, Botvinnik Defense, with Nge2 B25 2 plies deeper
- Sicilian Defense: Closed, Botvinnik Defense, Edge Variation B25 4 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia