Sumnum

A new number puzzle every day. Select the right cells so every row and column hits its target sum. Simple rules, satisfying logic.

Sumnum is a clean number puzzle with one rule: select cells in the grid so that every row and column adds up to its target.

Each puzzle has exactly one solution - no guessing, just logic.

HOW TO PLAY Tap a cell to select it or mark it as discarded. Get every row and column sum exactly right to win. Made a mistake? Undo as many times as you need.

FEATURES • Daily Puzzle - a fresh challenge every day with streak tracking • Three difficulty levels: Easy (5×5), Normal (7×7), Hard (9×9) • XP and leveling system - earn experience with every solve • Full undo support • Per-difficulty stats to track your progress • Dark mode • No ads

If you like Sudoku or Kakuro, you'll feel right at home.