If you're not sure about the [159] rule set, try [159] Echo.
It's very easy and works well as a tutorial.
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Rules:Normal sudoku rules apply.
Normal German Whispers rules apply. Consecutive digits on a GREEN line must differ by at least 5.
Cells with gray circles must contain odd digits.
The digit in the 1 position of a box indexes the 1's location in that box.
The digit in the 5 position of a box indexes the 5's location in that box.
The digit in the 9 position of a box indexes the 9's location in that box.
The positions within a box being:
1 | 2 | 3 |
4 | 5 | 6 |
7 | 8 | 9 |
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If you enjoyed this puzzle, here are a few custom searches for [159] puzzles.
If you are inspired by any of my [159] puzzles, I invite you to set a puzzle featuring the ruleset. You can do so with or without the, "[159]" moniker.
Thanks for playing!Solution code: Row 1 followed by row 9, no spaces
on 2. June 2023, 01:35 by saydo17
That was a lovely break in! Thank you.
on 15. April 2023, 21:49 by Vorox3
Fun puzzle with one very tricky break in! Great variant of the 159 ruleset! Lovely!
on 24. March 2023, 07:18 by qwert2812
That was very interesting and fun to solve all the way
on 22. March 2023, 11:05 by farodin64
Very creative and elegant combi of 159 and whisper ruleset spiced with a well-known graphic. I really like, thanks for the fun.