Competitions
Your tournament, with a real show
For a classroom, a club night, an office party or a family Sunday. Five games, two minutes to set up, a big screen that makes everyone cheer.
Free with an account · up to 64 players · 3 open competitions at once
Live right now
Counting the rooms…
Most are private: classrooms, offices, families. You can't join them, but you can start your own in two minutes.
How it works
Four steps, then the room takes over
1
Pick a game
SudoKru, SonarKru, CrossKru, Chess or Checkers.
2
Set the rounds
Presets, not rules: a warm-up, the half cut, a clock.
3
Share the code
Players join on their phones. No app, no account.
4
Run the show
Big screen, console, phone remote. We do the drama.
Race games
Everyone, the same puzzle, at the same time
Ranked rounds with an optional warm-up that does not count, and the top half going through after each round. Teams of 2 to 4 share one grid.
SudoKrurace
SonarKrurace
CrossKrurace
Duels
Two players, one board, one winner
Knockout with automatic byes, or a head-to-head match between two challengers. Blitz clocks from 1+0 to 10+0. A drawn game goes to one Armageddon decider, so every match ends tonight.
Chessduel
Checkersduel
The show
A big screen worth looking up for
- Live ranking, new leaders, flag falls and the last ten seconds
- Spotlights: the live chess board, or how full a grid is (never the answers)
- Run it from a laptop, or from your phone as a remote
- Fans who are not in the room watch with a 30 s delay
- An original score and stingers, on with one click
Running it for a company or a school?
Organizations put their own logo and colours on every screen, keep a puzzle library and get company leaderboards.