4th Perfect Intrication
Numbers and colors must appear once per row, column, 3×3 region and...
...each number–color combination can only appear ONCE in the entire 9×9 grid!
This mind-bending 4th Intrication changes everything!
Rainbow Technique
Pick any number and see which colors it's already paired with across the grid.
This reveals which colors are still available for that number.
Chromatic Circle Technique
Pick any color and see which numbers it's already paired with across the grid.
This reveals which numbers are still available for that color.
Interactive Cell Selection
Click multiple times on the same cell to cycle through different highlight modes.
Try clicking the green 4 cell below to see both Rainbow and Chromatic patterns!
You're Ready to Play!
In Suirodoku, you'll create exactly 81 unique number–color pairs, with each number and each color appearing once per row, column, and 3×3 region.
Ready to challenge your mind with this revolutionary puzzle?