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. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7
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Book continuations win% from 1.5M rated games
Matching openings 45
- Queen's Gambit Declined: Harrwitz Attack D37 1 ply deeper
- Queen's Gambit Declined: Three Knights Variation D37 2 plies deeper
- Queen's Gambit Declined: Miles Variation D37 3 plies deeper
- Queen's Gambit Declined: Modern Variation, Normal Line D55 3 plies deeper
- Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense D37 4 plies deeper
- Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense D37 4 plies deeper
- Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense D37 4 plies deeper
- Queen's Gambit Declined: Neo-Orthodox Variation D55 4 plies deeper
- Queen's Gambit Declined: Orthodox Defense D60 4 plies deeper
- Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line D37 5 plies deeper
- Queen's Gambit Declined: Anti-Tartakower Variation D55 5 plies deeper
- Queen's Gambit Declined: Neo-Orthodox Variation, Main Line D55 5 plies deeper
…and 33 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia