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 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5
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♞ You have reached Scandinavian Defense: Anderssen Counterattack B01 — the catalogued line ends exactly here.
Matching openings 4
- Scandinavian Defense: Anderssen Counterattack, Goteborg System B01 1 ply deeper
- Scandinavian Defense: Anderssen Counterattack, Collijn Variation B01 2 plies deeper
- Scandinavian Defense: Anderssen Counterattack, Orthodox Attack B01 5 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia