How to Play Daily Challenge
Goal
One puzzle per calendar day, same for everyone. Finish it to see your place on the leaderboard.

Shared daily run
New puzzle at 00:00 UTC
Streak
Finish every round to count the day toward your streak. Sign in to keep your Day streak on your profile across devices; the number on the results screen is what this browser remembers until then.
How to play
Start from the home page, or use the direct link below.
The screen always shows that day’s rules and scoring for the run you’re on.
Tips
- Midnight UTC: A new puzzle starts each UTC day. Streak rules are in the FAQ on Help.
- Accuracy over speed when wrong answers are expensive — the scoring screen is the final word.