Stay tuned to find out how you can easily remove unnecessary numbers within a block in case you have them occupy several cells. You can do this if you have 2 unique numbers in 2 cells within the same row or column.

In this video we are going to show you how to use the Pointing Pairs technique in combination with the Notes Mode.

We need to find a number that is present in 2 cells within the same block, but these two cells also have to be part of the same row or column.

Now, since we know that numbers 2 or 4 are the only ones that meet this requirement, we can safely delete all other instances of 2 and 4 from the same row, column or block.

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