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 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 ◀ Undo move

Book continuations win% from 1.5M rated games

h4 5 54% · 432 Nh3 1 f4 1

Matching openings 7

Caro-Kann Defense: Classical Variation, Flohr Variation B18 1 ply deeper
Caro-Kann Defense: Classical Variation, Main Line B18 1 ply deeper
Caro-Kann Defense: Classical Variation, Maróczy Attack B18 1 ply deeper
Caro-Kann Defense: Classical Variation B19 4 plies deeper
Caro-Kann Defense: Classical Variation, Spassky Variation B19 5 plies deeper
Caro-Kann Defense: Classical Variation, Lobron System B19 14 plies deeper
Caro-Kann Defense: Classical Variation, Seirawan Variation B19 14 plies deeper

3810 catalogued lines in total · openings encyclopedia