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. Nf3 d5 2. c4 dxc4 ◀ Undo move

♞ You have reached Réti Opening: Réti Accepted A09 — the catalogued line ends exactly here.

Book continuations

e3 1

Matching openings 2

Réti Opening: Réti Gambit, Keres Variation A09 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