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 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 ◀ Undo move

♞ You have reached Pirc Defense: 150 Attack B07 — the catalogued line ends exactly here.

Book continuations

Bg4 1

Matching openings 2

Pirc Defense: 150 Attack, Inner Doll Defense B07 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