Set Equivalence Theory: Revision history

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4 April 2026

  • curprev 14:0514:05, 4 April 2026‎ Seren talk contribs‎ 586 bytes +586‎ Created page with "'''Set Equivalence Theory''' (commonly abbreviated to '''SET''', sometimes redundantly '''SET Theory''') is an advanced sudoku solving technique. It states that if any set of cells 𝐴 is known to contain the same collection of digits as any set of cells 𝐵, then the set difference 𝐴 \ 𝐵 must also contain the same collection of digits as the set difference 𝐵 \ 𝐴. Usually 𝐴 and 𝐵 are chosen to be some union of non-overlapping rows, columns, and 3..."
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