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.
⚖ Grouping by position
Grouping by position: lines that reach this position by a different move order are included too.
1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3
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Matching openings 5
- English Opening: Symmetrical Variation, Four Knights Variation, Keres-Parma System A35 1 ply deeper
- English Opening: Symmetrical Variation A34 3 plies deeper
- English Opening: Symmetrical Variation, Full Symmetry Line A38 3 plies deeper
- Queen's Gambit Declined: Semi-Tarrasch Defense D41 3 plies deeper
- English Opening: Symmetrical Variation, Mecking Variation A39 6 plies deeper
3810 catalogued lines in total · openings encyclopedia