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. By default move orders are strict — flip the toggle to group by position and pull in transpositions.
⚖ Grouping by position
Grouping by position: lines that reach this position by a different move order are included too.
1. c4 Nf6 2. d4 e6 3. Nc3 Bb4 4. Qc2
◀ Undo move
♞ You have reached Nimzo-Indian Defense: Classical Variation E32 — the catalogued line ends exactly here.
Book continuations win% from 1.5M rated games
Matching openings 20
- Nimzo-Indian Defense: Classical Variation, Zurich Variation E33 1 ply deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation E34 1 ply deeper
- Nimzo-Indian Defense: Classical Variation, Berlin Variation E38 1 ply deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation E36 2 plies deeper
- Nimzo-Indian Defense: Classical Variation, Milner-Barry Variation E33 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation E35 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Berlin Variation, Steiner Variation E38 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation E39 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Keres Defense E32 5 plies deeper
- Nimzo-Indian Defense: Classical Variation, Vitolins-Adorjan Gambit E32 5 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation, Botvinnik Variation E36 5 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation, Main Line E36 5 plies deeper
…and 8 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia