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. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Qf3 f5
◀ Undo move
♞ You have reached Vienna Game: Vienna Gambit, Bardeleben Variation C29 — the catalogued line ends exactly here.
Book continuations
Matching openings 2
- Vienna Game: Heyde Variation C29 1 ply deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia