This is part 2 of my 6x6 friendly cells trilogy.
Part 1: Moody friendship
Part 3: Pygmy Python
Rules
Normal sudoku rules apply.
In this puzzle, half of the cells are "friendly".
A cell is "friendly" if it contains its row, column, or box number.
Cells separated by a knight's move cannot contain the same digit.
In the finished grid, each 2x2 square of cells has to contain at least one low digit (1/2/3) and one high digit (4/5/6) [Global entropy].
Digits separated by an X sum to 10, and they are ALL given.
Optional rule to make the puzzle easier:
Digits separated by a V sum to 5, and they are ALL given.
Solution code: Row 2
on 6. March 2025, 03:59 by NicoD
Edit: added links to parts 1 and 3.
on 5. March 2025, 11:18 by Snookerfan
Very nice. I found some of the deductions a little bit a long chain, therefore hard to spot. The global entropy did some heavy lifting, which I liked a lot. In the end everything came together really well. Thank you
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ND: Thanks, glad you enjoyed.
Difficulty: | ![]() |
Rating: | N/A |
Solved: | 12 times |
Observed: | 6 times |
ID: | 000M9E |
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