C4Chess
Opening Explorer
Explore the c4chess opening tree: how elite players (2400+ over-the-board) and everyday club players handle every position. Click a move or play it on the board.
Opening book: built from LumbrasGigaBase by Michael Jansen, licensed under CC BY-NC 4.0.
| Move | Elite | Club |
|---|
Elite (2400+ OTB, 909k games)Club (online, 6.2M games)
Moves below 5 total appearances are not in the book. Positions merge across move orders, so transpositions land in the same node.