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.

⚖ Strict move orders

1. e4 c5 2. Nf3 e6 3. d4 ◀ Undo move

Book continuations win% from 1.5M rated games

cxd4 51 51% · 6k a6 1 45% · 299 d5 1 47% · 676

Matching openings 53

Sicilian Defense: Drazic Variation B40 1 ply deeper
Sicilian Defense: French Variation, Open B40 1 ply deeper
Sicilian Defense: Marshall Counterattack B40 1 ply deeper
Sicilian Defense: Smith-Morra Gambit Deferred B40 2 plies deeper
Sicilian Defense: French Variation, Normal B40 3 plies deeper
Sicilian Defense: Kveinis Variation B40 3 plies deeper
Sicilian Defense: Paulsen-Basman Defense B40 3 plies deeper
Sicilian Defense: Kan Variation B41 3 plies deeper
Sicilian Defense: Taimanov Variation B44 3 plies deeper
Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation B41 4 plies deeper
Sicilian Defense: Kan Variation, Modern Variation B42 4 plies deeper
Sicilian Defense: Kan Variation, Knight Variation B43 4 plies deeper

…and 41 more lines run through this position — keep making moves to narrow it down.

3810 catalogued lines in total · openings encyclopedia