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. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5
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Book continuations win% from 1.5M rated games
Matching openings 4
- Pterodactyl Defense: Western, Rhamphorhynchus B27 1 ply deeper
- Pterodactyl Defense: Sicilian, Rhamphorhynchus B27 2 plies deeper
- Pterodactyl Defense: Sicilian, Pteranodon B27 4 plies deeper
- Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation B27 5 plies deeper
3810 catalogued lines in total · openings encyclopedia