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. By default move orders are strict — flip the toggle to group by position and pull in transpositions.
1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6
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♞ You have reached Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 B30 — the catalogued line ends exactly here.
Book continuations win% from 1.5M rated games
Matching openings 2
- Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line B30 2 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia