HOW TO PLAY: Fill the empty squares in the grid below with the numbers 1-9 so that each column and 3x3 grid contain each number only once. The far right column ("sum column") must equal the the singles digit from the sum of that row.
Example: 8 + 5 + 2 = 15, so a 5 would placed in the sum column.
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Drag numbers from the left onto blank cells to update.
Click on a cell to add or remove numbers for that cell,
← ↑ ↓ → W, A, S, D and numbers supported.


Hapy PI Day! Celebrate March 14th with a special Kansuko puzzle!