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. a3
◀ Undo move
♞ You have reached Anderssen's Opening A00 — the catalogued line ends exactly here.
Matching openings 5
- Anderssen's Opening: Polish Gambit A00 2 plies deeper
- Van Geet Opening: Battambang Variation A00 2 plies deeper
- Formation: Hippopotamus Attack A00 12 plies deeper
- Formation: Shy Attack A00 12 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia