Kakuro: Cross Sums Puzzle

Kakuro: Cross Sums Puzzle

A calm, focused logic game built around the classic Japanese-style cross-sums puzzle. Each row and column of empty squares must add up to a target sum, using digits 1 to 9, with no digit repeating inside the same run. Simple rules, deep play.

WHAT IS KAKURO?
Kakuro — sometimes called cross sums or a number crossword — is a logic puzzle that combines arithmetic with deduction. Read the clue at the start of each run, work out which combinations of digits can hit that sum without repeats, then narrow down the candidates until the whole board falls into place. If you enjoy sudoku, killer sudoku, or other number puzzles, Kakuro is a natural next step.

GAME FEATURES
• Three difficulty tiers: 2x2 grids for newcomers, 3x3 for steady challenge, 4x4 for veterans.
• Pencil-mark mode for noting candidate digits without committing them.
• Undo and redo on every move — explore freely.
• Hint system that fills the next correct digit when you are stuck.
• Live error highlighting catches duplicates and broken sums as you play.
• A custom number pad designed for puzzles — no system keyboard interruptions.
• Per-puzzle timer with personal-best tracking.
• Daily streak counter and lifetime statistics.

PERSONALIZE THE EXPERIENCE
• Light, dark, and follow-system themes.
• Five accent colors: Indigo, Teal, Rose, Amber, and Forest.
• Thirteen languages: English, Spanish, French, German, Portuguese, Russian, Arabic, Hindi, Nepali, Bahasa Indonesia, Chinese, Japanese, and Korean.
• Full right-to-left layout support.

DESIGNED TO RESPECT YOUR FOCUS
• Clean, minimal interface — nothing between you and the puzzle.
• Plays fully offline. No account, no login required.
• Lightweight install, smooth on older devices.

WHO IT IS FOR
Anyone who likes thinking with numbers — sudoku solvers, killer sudoku fans, math enthusiasts, students, commuters, or anyone looking for a quiet way to wind down or warm up the brain.

HOW TO PLAY
1. Tap an empty cell.
2. Pick a digit from the pad below.
3. Every row run must sum to the clue on its left; every column run must sum to the clue at its top.
4. A digit can appear only once inside a single run.
5. When every cell is filled and every sum lines up, the puzzle is solved.

Sharpen your logic, train your mental math, and settle into a quiet number puzzle — one cross sum at a time.