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. d3
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♞ You have reached French Defense: King's Indian Attack C00 — the catalogued line ends exactly here.
Matching openings 4
- French Defense: King's Indian Attack, Franco-Hiva Gambit C00 1 ply deeper
- French Defense: Reversed Philidor Formation C00 6 plies deeper
- King's Indian Attack: Sicilian Variation A08 12 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia