• Normal Sudoku rules apply.
• A gold cell contains its position within its row, column or box. Position is read from left to right, top to bottom. All possible gold cells are given.
Solution code: row two
on 10. February 2026, 19:08 by Supalea
Loved it ❤️ very smooth
on 10. February 2026, 07:09 by Dee_Code
Not me forgetting the "global" part of the rules where all possible where there, ugh that added like 30 minutes, until I was like, there is no way to disambiguate this, did I miss something?
on 6. February 2026, 18:34 by Pairot
Yeah, gold cells constraint always gets you the first time
on 6. February 2026, 13:05 by Mozart40
I usually struggle a bit with this type of puzzle, but surprisingly everything went remarkably smoothly.
on 6. February 2026, 12:09 by VeTaurus
Thanks, I read the rule about position in box wrong. I thought it was the boxnumber and not the position in the box.
on 6. February 2026, 12:08 by Matti64
Gold cell in the middle of box 9 can be 5 (position in the box) or 8 (row 8, column 8)
on 6. February 2026, 12:08 by Bhuja
r8c9, being gold, is either 9 (column), 8 (row), or 6 (position in box 9).
on 6. February 2026, 11:33 by VeTaurus
I don´t understand the rule. Does it mean e.g. a cell in r2c3 can only be a 1, 2 or 3? Then the gold cells in box 9 can all only be 8 or 9 but it is 3 cells. What am I getting wrong?
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