Kakuro Master
Play Kakuro Master free online — fill 1–9 so every run sums to its clue with no repeats. Easy 6×6, Medium 8×8, Hard 10×10; 3 mistakes. No download.
Strategy
Kakuro Master
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📖 How to Play
Fill white cells with digits 1-9. Each run of cells must sum to its clue number, and no digit repeats in a run. Tap a cell then pick a number. Use hints when stuck.
❓ Frequently Asked Questions
What is Kakuro and how does it differ from Sudoku?
Kakuro is a cross-sum puzzle where groups of cells must add up to a clue number without repeating digits. Unlike Sudoku which uses all 9 digits in rows/columns, Kakuro requires math and logic to find the right digit combinations for each sum.
How does scoring work in Kakuro Master?
You earn points for each correctly placed digit, with a multiplier based on difficulty (Easy x1, Medium x2, Hard x3). A time bonus rewards fast completions, and using hints reduces your final score.
Are Kakuro Master puzzles randomly generated?
Yes! Every puzzle is procedurally generated with a guaranteed unique solution, giving you unlimited fresh challenges at every difficulty level.
How many mistakes can I make in Kakuro Master?
Three. The HUD shows Mistakes N/3 and the puzzle ends at 3. A wrong digit in a white cell counts; hints fill a correct cell instead of counting as a miss. Slow down on Hard — the 10×10 grid plus 3-mistake cap punishes guessing.
How big are the Easy, Medium and Hard Kakuro grids?
Easy is 6×6, Medium 8×8, Hard 10×10. Digits are always 1–9 with no repeats in a run. Each correct digit scores 10 × difficulty (×1 / ×2 / ×3); each hint costs 15 × that same multiplier.
What is the exact Kakuro time bonus and hint cost?
Each correct digit is 10 × difficulty (1/2/3). On clear, add max(0, floor((300 − seconds) × that multiplier)) minus 15 × multiplier per hint used (not below 0). Hints can be used on every empty white cell. 3 mistakes end the puzzle.
Can two people play Kakuro Master?
Solo only. Grids are 6×6 / 8×8 / 10×10, digits 1–9 no repeats in a run. Wrong digits flash and count toward 3 mistakes; they do not fill the cell. Free in the browser, tap cell then digit, no download.
Does a Kakuro hint score the digit, and can I erase it?
No. HINT fills a random empty white cell with the solution and locks it — that cell does not add the 10×difficulty digit points. Erase clears only unlocked digits you typed; hinted cells stay. A wrong keypad digit flashes, counts as 1 of 3 mistakes, and does not stay in the cell. Solo 6×6 / 8×8 / 10×10.
Can I play Kakuro Master with a keyboard, and are there pencil notes?
Desktop keys: 1–9 fill the selected white cell, Backspace/Delete/0 erase an unlocked digit, H uses HINT, arrows or WASD move to the next white cell (clue/black cells are skipped). There are no pencil notes or candidates. Runs are capped at 4 cells on Easy (6×6), 5 on Medium (8×8), and 6 on Hard (10×10). Solo, digits 1–9 with no repeats in a run, 3 mistakes.