SUMS — Free Daily Number Puzzle Game

SUMS is a free daily number logic puzzle at sums.games. Fill a grid by counting up: tap a chain of touching numbers that adds up to the next number, then place it in an empty square touching the last one. Diagonals count.

Play Mini SUMS (5×5) for a short solve or Full SUMS (7×7) for a longer challenge. New puzzles every day.

How to play

1. 1, 2 and 3 start on the board, so your first number is 4.
2. Tap a chain of numbers that adds up to the next number. Each must touch the one before it, diagonals included.
3. Tap an empty square touching the last number in the chain to place it.
4. Gray numbers come with the puzzle. When you reach one, a chain touching it has to add up to it.
5. Fill every square that isn't a wall to win. Undo is available if a placement blocks the path.

Game modes

• Mini SUMS: 5×5 grid, usually a few minutes.
• Full SUMS: 7×7 grid with more planning, clues, and walls.
• Hard mode: limits how many cells you can select at once.

SUMS is created by Xavier Games and is free to play in any modern browser.