White
Black
Compared last
World championship duels
Kinds of tournaments
Featured
All games of the site
Choose a data source at the books icon in the bar – then its games per volume
This page cannot be used without JavaScript. Please switch JavaScript on in your browser and reload the page.
For two on one device: whoever leaves the main line first loses the round.
Round 1
Two players, one device. At the top stands a main line, for example Ruy Lopez: Closed, main line. You play it alternately move by move on the board, one with White, one with Black.
Whoever leaves the book first loses the round. The other gets one point for every move they played correctly, plus 5 for the win. If you both know the whole variation, each gets 5 points. After every round the colours change.