Dutch Flatmates: every 5 in the grid must have either a 1 above or a 9 below or both.
Lockout Lines: digits on the line are outside of the range of the digits in the connected diamonds. Digits in diamonds on a line need to have a difference of at least 4.
Maximum/Minimum: The inequality signs on gray cells point to the lower digit.
Play online with Sven's Sudokupad.
Solution code: All digits in column 1 top to bottom.
| Difficulty: | ![]() |
| Rating: | N/A |
| Solved: | 6 times |
| Observed: | 0 times |
| ID: | 000V8A |
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