Rooted: Created page with "A '''peer''' or '''buddy''' is a cell that shares one or more houses with another cell. In standard Sudoku, each cell has 20 peers—3 houses (box / column /..."

2020-05-31T20:22:36Z

Created page with "A '''peer''' or '''buddy''' is a cell that shares one or more houses with another cell. In standard Sudoku, each cell has 20 peers—3 houses (box / column /..."

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A '''peer''' or '''buddy''' is a [[cell]] that shares one or more [[house]]s with another cell.

In standard Sudoku, each cell has 20 peers—3 [[house]]s (box / column / row) each containing 8 peers, less 4 that overlap: ((3 x 8) - 4) = 20.
This image shows the peers of '''r5c5''':

[[Image:Peergrid.png]]

Peers play an important role in [[solving technique]]s, because peers cannot contain the same [[digit]].

== Note ==
Another way of saying that cells '''X''' and '''Y''' are peers is to say "'''X''' [[see]]s (or intersects) '''Y'''".

Peer - Revision history

Rooted: Created page with "A '''peer''' or '''buddy''' is a cell that shares one or more houses with another cell. In standard Sudoku, each cell has 20 peers—3 houses (box / column /..."