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 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5
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♞ You have reached Alekhine Defense: Two Pawns Attack, Lasker Variation B02 — the catalogued line ends exactly here.
Book continuations
Matching openings 5
- Alekhine Defense: Hunt Variation, Lasker Simul Gambit B02 4 plies deeper
- Alekhine Defense: Two Pawns Attack, Mikenas Variation B02 5 plies deeper
- Alekhine Defense: Hunt Variation, Matsukevich Gambit B02 6 plies deeper
- Alekhine Defense: Hunt Variation, Mikenas Gambit B02 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