Mini Killer Sudoku challenges
Pick a date and play four 6×6 Killer layouts (Easy–Expert) from the mini Sudoku daily archive—cages are derived from that day’s solution.
The calendar highlights the last 90 days through Aug 28, 2026. Any past date still opens if you use a direct link (for example /challenges?date=… or /play/challenge/… from social). Future dates are not available yet.
MonTueWedThuFriSatSun
Play this day
Sunday
July 19, 2026
Each date has four fixed puzzles (one per level). Select a level to start — timer, notes, hints, and undo work the same as in quick play.