To the Puzzles Editor of the New York Times, ...

Dear Puzzles Editor of the New York Times,

I wish to draw your attention to the "All or One" puzzle in the August 6, 2023 edition of the newspaper.

The puzzle rules are:

Place a digit from 1 to 3 in each cell so that each outlined region contains either all the same digit or all different digits. If two cells are separated by a bold region boundary, they must contain different digits.

Here is the puzzle solution, from the August 13, 2023 edition of the newspaper.

Please note that the cells at Row 3, Column 2, and Row 4, Column 2 (as numbered from the top-left corner of the puzzle) both contain the number "2", yet they are separated by a bold region boundary.

Bzzzzt!