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. Move orders, not transpositions — exactly the paths over the board. Prefer the family trees? Every opening page has one.
1. e4 c5 2. Nf3 a6
◀ Undo move
♞ You have reached Sicilian Defense: O'Kelly Variation B28 — the catalogued line ends exactly here.
Matching openings 20
- Sicilian Defense: O'Kelly Variation, Aronin System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Kieseritzky System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Maróczy Bind B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Normal System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Quiet System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Réti System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Venice System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Wing Gambit B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Yerevan System B28 1 ply deeper
- Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line B28 2 plies deeper
- Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line B28 2 plies deeper
- Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line B28 2 plies deeper
…and 8 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia