Variant Lesson: German Whispers
(Published on 6. December 2025, 20:50 by Deckatron)
Place 6 unique digits (from 1-9) into the grid such that each digit appears 6 times and any given digit does not repeat in any row, column or 2x3 box. Which 6 digits to use must be determined.
German Whispers:
On a green line, adjacent digits must differ by at least 5.
Thermometer:
Digits along the thermometer strictly increase from the bulb.
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Solution code: Row 5 entered left to right with no spaces
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Comments
on 7. December 2025, 02:27 by Decapod
Great training level! Newbies should get a nice lightbulb moment when they discover which 6 digits to use. I liked the end-game disambiguation of the pencil marks.