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 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3
◀ Undo move
♞ You have reached Ruy Lopez: Berlin Defense, Anti-Berlin Variation C65 — the catalogued line ends exactly here.
Matching openings 6
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Mortimer Variation C65 1 ply deeper
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Anderssen Variation C65 2 plies deeper
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Duras Variation C65 2 plies deeper
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Kaufmann Variation C65 2 plies deeper
- Ruy Lopez: Berlin Defense, Anti-Berlin Variation, Mortimer Trap C65 3 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia