Fill each row, column, and box with the same set of four distinct digits.
The digit in the bulb is the sum of the digits along the arrow.
The magenta line is a renban. It is a set of three consecutive digits without repeats.
Digits separated by the black dot are in a 1:2 ratio.
Digits separated by a red dot are coprime (GCD is 1)
Click on the puzzle to go to the online solver.
Solution code: Rows 3 and 4, from left to right. No spaces or additional symbols
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