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 d5 4. Nf3
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Book continuations win% from 1.5M rated games
Matching openings 2
- Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line D37 6 plies deeper
- Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack D64 10 plies deeper
3810 catalogued lines in total · openings encyclopedia