Another Kakuro strategy: difference of 2 cells
2008-08-09Last time I have had discussed about using arithmetics to solve kakuro (part 1, part 2); most of the methods are trivial for everybody except the last case which is not apparent. This one is also not apparent as well, and I have almost never encountered it except once. It is about:
Calculating the difference between 2 cells!
How can the difference of 2 cells be helpful? See below for initial configuration:
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