Play more Kakuro
Unlimited Kakuro in three sizes (7x7, 8x8 and 10x10, counting the clue border) and four levels. Every grid has one solution, checked by a separate program, and its level is the hardest technique it needs.
This puzzle
Loading ยท the grid and its level
(a small spoiler)
Checked: exactly one solution, reachable by logic. The level is the hardest technique our solver needed, not the grid size.
Settings
Rule breaks (a repeated digit in a run) always show in red. "Show mistakes" also marks cells that disagree with the solution.
What the size changes
A bigger grid has longer runs and more of them, so there are more sums with several combinations. That is why Easy is rare on 10x10 and why we do not offer it there: the level would stop being honest. Size and level are separate choices, so a kakuro 8x8 Expert grid is smaller than a 10x10 Medium one and still the harder of the two.
| Size | Level | Puzzles | Median steps | Need a tier-3 or harder technique |
|---|---|---|---|---|
| 7x7 | Easy | 50 | 50 | 0% |
| 7x7 | Medium | 50 | 51 | 0% |
| 7x7 | Hard | 50 | 55 | 100% |
| 7x7 | Expert | 50 | 61 | 100% |
| 8x8 | Easy | 50 | 63 | 0% |
| 8x8 | Medium | 50 | 65 | 0% |
| 8x8 | Hard | 50 | 70 | 100% |
| 8x8 | Expert | 50 | 80 | 100% |
| 10x10 | Medium | 50 | 111 | 0% |
| 10x10 | Hard | 50 | 120 | 100% |
| 10x10 | Expert | 50 | 129 | 100% |
Source: the Gridaday bank, 550 puzzles of Kakuro graded by our solver; data as of 2026-10-17.
Challenge a friend
After you solve a puzzle, "Challenge a friend" copies a link to the same Kakuro with your time. Your friend gets exactly your grid; nothing else is shared, and nothing goes through our servers.