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 e6 2. d4 Nf6 3. Nc3 Bb4 4. e3 c5
◀ Undo move
♞ You have reached Nimzo-Indian Defense: Rubinstein System E41 — the catalogued line ends exactly here.
Matching openings 8
- Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation E42 1 ply deeper
- Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation, Main Line E42 5 plies deeper
- Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation, Sherbakov Attack E42 5 plies deeper
- Nimzo-Indian Defense: Sämisch Variation E29 6 plies deeper
- Nimzo-Indian Defense: Rubinstein System, Hübner Variation E41 6 plies deeper
- Nimzo-Indian Defense: Rubinstein System, Hübner Variation E41 8 plies deeper
- Nimzo-Indian Defense: Sämisch Variation, Capablanca Variation E29 10 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia