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. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 ◀ Undo move

♞ You have reached Benko Gambit: Zaitsev System A57 — the catalogued line ends exactly here.

Book continuations

axb5 2

Matching openings 3

Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack A57 4 plies deeper
Benko Gambit: Nescafe Frappe Attack A57 6 plies deeper

…and 1 more lines run through this position — keep making moves to narrow it down.

3810 catalogued lines in total · openings encyclopedia