| Statement.
You can always determine a number in a
row/column/stream intersection (as well as
row/column; or row/stream; or column/stream) whose
cells already contain all but one value. |
|
Example.
The 1 must be placed as pointed, since all other possible values (2, 3, 4,
and 5) are already presented in the
row/column/stream that form this intersection. |
