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.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3
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♞ You have reached Nimzo-Indian Defense: Classical Variation, Noa Variation E36 — the catalogued line ends exactly here.
Book continuations win% from 1.5M rated games
Matching openings 7
- Nimzo-Indian Defense: Classical Variation, Noa Variation, Botvinnik Variation E36 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation, Main Line E36 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Romanishin Gambit E36 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation E37 4 plies deeper
- Nimzo-Indian Defense: Classical Variation, Modern Variation E37 5 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation, San Remo Variation E37 7 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia