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. Nf3 g6 2. d4 Bg7 3. e4
◀ Undo move
Book continuations win% from 1.5M rated games
Matching openings 5
- Modern Defense: Mongredien Defense, with Nf3 B06 1 ply deeper
- Modern Defense: Geller's System B07 2 plies deeper
- Pterodactyl Defense: Western, Anhanguera B06 3 plies deeper
- Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted A04 5 plies deeper
- Pterodactyl Defense: Western, Siroccopteryx B06 5 plies deeper
3810 catalogued lines in total · openings encyclopedia