Competitions will be held at regular intervals on the site. Dates of upcoming tournaments will be posted in advance on the home page of the practice module.
Competitions are held on the day and the specific timeand have a limited time duration between 10 and 30 minutes.
It is necessary to register in advance. Once the tournament has started it will be too late.
At the end of the competition a ranking is given and the first 3 places are highlighted in the player statistics.
Unlike "battles" which use puzzles from the practice database, tournaments are played with new puzzles.