Draw a loop that contains exactly half the grid by connecting orthogonally adjacent dots. All cells with the same letter have the same number of sides used by the loop. All cells with different letters have a different number of sides used by the loop. Packs a decent punch for the size and clue density. And yes, I win no points for elegance.
XIVI Pairs Sudoku by clover!
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(This post is part of the Genuinely Approachable Sudoku (GAS) series.) What
some may have seen as a typo of a 6 for a 5 in an earlier XV Pairs Sudoku
by ...
6 hours ago
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