Daily Schulte Challenge
Every day brings one fresh grid — the same board for every player on the planet. Finish it, then send your challenge link: friends play the identical board and try to beat your time.
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Finish a round to start your progress curve.
Today's leaderboard5×5 classic · same grid worldwide
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How the daily challenge works
The daily grid is generated from the UTC date as a random seed, so everyone everywhere plays the exact same board each day. Your history is tracked in your browser — and finished rounds can land on today’s community leaderboard, powered by our community database.
The algorithm is open source — verify it yourself: schulte-daily-seed (GitHub)
Challenge a friend
After finishing, hit “Challenge a friend” to copy a link containing your board seed and your time. Whoever opens it plays the identical grid with your time as the target — pure URL magic. Want the spotlight? Today’s leaderboard runs on real rounds from players on this site.