How to Play Daily Challenge

Goal

One puzzle per calendar day, same for everyone. Finish it to see your place on the leaderboard.

Everyone gets the same flag and rules for that UTC day — scores compare on one shared run.

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.

Try the daily challenge

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.