This competition has now ended.
Raise the difficulty level on our puzzle and try to beat all the other players. The highest ranked player at the end of the week wins, along with a lucky player through drawing of lots.
This week's prizes: -
Last winners: Azeri & Night
All participants have an equal chance of winning. Winners will be notified by email. One registration only per person is permitted, and each participant can win once only. Participation is open to everyone apart from employees of SRG SSR idée suisse. Prizes may change. All participants agree to abide by and accept these terms and conditions.