Sumday — Daily Number Puzzle

Nine numbers. One perfect balance. Make a little room for logic with Sumday. Place 1–9 once each so every row, column, and diagonal adds up to its target. Every puzzle has exactly one solution. YOUR DAILY MOMENT A fresh daily puzzle gives everyone the same challenge. Finish consecutive daily puzzles to build your streak. KEEP PLAYING Switch to Practice for another puzzle whenever you like. All practice puzzles are free. A HAND WHEN YOU NEED IT Use a hint to reveal one correct number, erase an entry, or undo a move. Matching sums show a checkmark so you can follow your progress. PLAY ANYWHERE No internet connection or account is required. Your puzzle progress saves automatically on your device. SHARE THE SATISFACTION Share a spoiler-free result with the puzzle date and your hint count. All puzzles and features are free. No ads, subscriptions, or in-app purchases. Daily puzzles reset at midnight UTC. Progress stays on your device and does not sync between devices.