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 e6 3. Nc3 Bb4 4. f3 d5 5. a3 ◀ Undo move

Book continuations

Matching openings 4

Nimzo-Indian Defense: Sämisch Variation E25 4 plies deeper
Nimzo-Indian Defense: Sämisch Variation, Keres Variation E25 6 plies deeper
Nimzo-Indian Defense: Sämisch Variation, Botvinnik Variation E24 7 plies deeper
Nimzo-Indian Defense: Sämisch Variation, Romanovsky Variation E25 7 plies deeper

3810 catalogued lines in total · openings encyclopedia