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 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7
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♞ You have reached Queen's Gambit Declined: Modern Variation, Knight Defense D51 — the catalogued line ends exactly here.
Matching openings 9
- Queen's Gambit Declined: Modern Variation, Knight Defense D51 1 ply deeper
- Queen's Gambit Declined: Manhattan Variation D51 2 plies deeper
- Queen's Gambit Declined: Modern Variation, Knight Defense D51 2 plies deeper
- Queen's Gambit Declined: Alekhine Variation D51 3 plies deeper
- Queen's Gambit Declined: Capablanca Variation, Anti-Cambridge Springs Variation D51 3 plies deeper
- Queen's Gambit Declined: Rochlin Variation D51 5 plies deeper
- Queen's Gambit Declined: Cambridge Springs Defense, Capablanca Variation D52 5 plies deeper
- Queen's Gambit Declined: Cambridge Springs Defense, Argentine Variation D52 9 plies deeper
…and 1 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia