Difference between revisions of "Triangular Connection"
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Revision as of 04:23, 20 January 2022
In Sudoku-X, the triangular connection solving technique can be stated as follows:
- Consider a digit X. Suppose a diagonal contains only two cells that has X as a candidate, call them A and B. Suppose another constraint contains only two cells that has X as a candidate, call them C and D. If A and C are peers, then we can eliminate X from any cell that is seen by both B and D.
Double crossover is a special case of Triangular Connection, where the constraint containing C and D is the other diagonal.
Like the Double Crossover technique, the triangular connection technique can be replicated using Color Wing with two clusters, or by using the following chain:
(X): B = A - C = D
