SUMS FAQ
Common questions about the free daily number puzzle at sums.games.
What is SUMS?
SUMS is a free daily number puzzle at sums.games. You fill a grid by counting up: to place the next number, tap a chain of touching numbers that adds up to it, then tap an empty square next to the last one. Diagonals count.
How do you play SUMS?
1, 2 and 3 start on the board, so your first number is 4. Tap a chain of numbers that adds up to the next number, each touching the one before it (diagonals count), then tap an empty square touching the last number in the chain. Gray numbers come with the puzzle, but when you reach one, a chain touching it has to add up to it. Fill every square that isn't a wall to win.
Do diagonals count in SUMS?
Yes. Every square touches the eight squares around it, including diagonals. That applies both to building a chain and to placing the number.
Why won't SUMS let me place a number?
The square has to be empty and touch the last number in your chain, and the chain has to add up to exactly the next number. If all of that is true and it's still refused, putting the number there would leave the next gray number with no chain touching it that adds up to it.
Is SUMS free to play?
Yes. SUMS is free to play in any modern web browser. You do not need an account, app download, or subscription. The game is ad-supported.
What is the difference between Mini SUMS and Full SUMS?
Mini SUMS is a 5×5 grid meant for a quick solve, often in a couple of minutes. Full SUMS is a 7×7 grid with more planning, walls, and longer number chains. Both puzzles refresh daily.
When does the daily SUMS puzzle reset?
A new Mini puzzle and a new Full puzzle are published every day at midnight Eastern Time (America/New_York).
Do I need an account to play SUMS?
No. Open sums.games and play immediately. Statistics, streaks, and best times are stored locally in your browser, not on an account.
What is Hard mode in SUMS?
Hard mode limits how many cells you can select at once, typically to three or four. That forces tighter combinations and more planning than Normal mode.
Is there a time limit?
No. You can take as long as you want. SUMS still tracks your completion time so you can compare personal bests and optional daily high scores.
How does weekly difficulty work?
Puzzles are scheduled from easier to harder across the week: Monday is difficulty 1 and Sunday is difficulty 7. Weekday boards stay approachable; weekend boards ask for longer-range planning.
Who created SUMS?
SUMS is created by Xavier Games. The puzzle started as a paper-and-pencil game and is now a free daily web game at sums.games.