Normal sudoku rules apply.
A number outside the grid is the sum of all the digits between the 7 and the 8 in the corresponding row or column.
Pick any square with a 6 and the sum of all squares that are orthogonally adjacent to that square will always be 9.
On the left we see that the numbers between the 7 and the 8 adds up to 3.
At the bottom we see that all the numbers orthogonally adjacent to the 6 adds up to 9.
solving online: penpa
Lösungscode: Row 3 from left to right, then row 8 from left to right. No gaps between numbers.
am 24. August 2020, 12:54 Uhr von Lizzy01
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