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 Bxc3
◀ Undo move
Book continuations win% from 1.5M rated games
Matching openings 6
- Nimzo-Indian Defense: Classical Variation, Noa Variation, Botvinnik Variation E36 2 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation, Main Line E36 2 plies deeper
- Nimzo-Indian Defense: Classical Variation, Romanishin Gambit E36 2 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation E37 3 plies deeper
- Nimzo-Indian Defense: Classical Variation, Modern Variation E37 4 plies deeper
- Nimzo-Indian Defense: Classical Variation, Noa Variation, San Remo Variation E37 6 plies deeper
3810 catalogued lines in total · openings encyclopedia