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. g4 d5 2. Bg2 Bxg4 3. c4 ◀ Undo move

♞ You have reached Grob Opening: Grob Gambit, Fritz Gambit A00 — the catalogued line ends exactly here.

Book continuations

d4 2

Matching openings 3

Grob Opening: Romford Countergambit A00 1 ply deeper
Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit A00 5 plies deeper

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

3810 catalogued lines in total · openings encyclopedia