this post was submitted on 24 Jan 2024
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Sudoku

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A community for sudoku (and similar) puzzle-solvers! Share your techniques, ask questions, or post memes (are there such things as sudoku memes?)

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Practicing advanced Sudoku techniques - anyone see anything fun here? (lemm.ee)
submitted 7 months ago by [email protected] to c/[email protected]
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I'm working on becoming familiar with wings, chains, uniques, and all the sea animals and skyscrapers. Whatcha see here?

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[โ€“] [email protected] 2 points 7 months ago* (last edited 7 months ago) (4 children)

spoiler379 in the upper right box cannot be a 7 or a 9, due to this chain:

[โ€“] [email protected] 2 points 7 months ago

I noticed the same thing if you place

spoiler7 in the lower right square if the top left group, makes it impossible to place a 7 in the bottom middle group.

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