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 e6 2. d4 d5 3. Nc3 a6 4. Nf3 Nf6 5. e5 Nfd7
◀ Undo move
♞ You have reached French Defense: Steinitz Variation C11 — the catalogued line ends exactly here.
Matching openings 4
- French Defense: Steinitz Variation C11 1 ply deeper
- French Defense: Steinitz Variation C11 1 ply deeper
- French Defense: Classical Variation C14 1 ply deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia