Shikaku, free right now
One official puzzle is free. When the next one is published, it appears here. You do not get a new page for every tick of the clock.
How the four-hour rotation works
DIGIGMA publishes one official logic puzzle on a four-hour schedule. That newest grid is free for guests and members. Older official grids stay in the archive and can be unlocked with DIG. Community grids are published separately and are not this rotation.
You can open the current grid in the browser without an account. Signing in keeps your progress: not started, in progress, or finished.
Want an older grid or another game? Browse every published grid, or read the rules before you start.