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.

♜♞♝♛♚♝♜♟♟♟♟♟♟♞♟♟♟♞♟♟♟♟♟♟♜♝♛♚♝♞♜a8b7c6d5e4f3g2h1
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 ◀ Undo move

Book continuations win% from 1.5M rated games

Matching openings 17

…and 5 more lines run through this position — keep making moves to narrow it down.

3810 catalogued lines in total · openings encyclopedia