A smaller Sudoku problem is of interest. The numbers involved are from 1 through 6. The sum of each row as well as each column is 21. In addition, the sum of the numbers in each colored block shown in the diagram below is also 21.
The Sudoko board in this problem has three numbers not in the right position. Please help fixing it.
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Last Solution submitted on May 30, 2026

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Chris Cleveland George Berken Christian Schröder Matthew Bolyard

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