Sudoku Square Patterns 678 Horizontal

Another favorite pattern of mine is what I call the 678 Horizontal Pattern or 678 Non-diagonal Pattern. You can see a sample of it below.

I usually remember it as 678, 245, 931. And again, you can switch the order of rows or columns. And 678 can be vertical or horizontal. But once you find the 678 sequence in a row or column, then the entire square pattern should hold.

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