Power of 2
(Published on 28. July 2025, 17:40 by TerrierDarts)
Normal Sudoku rules apply.
Each row, column, and box must contain the digits 1–9 exactly once.
Orange Cages (Sum Cages):
Each orange cage contains exactly three digits. Two of them must sum to the third (e.g. A + B = C, in any order).
Yorkshire Lines (Light Blue):
Digits on a Yorkshire line must alternate between high and low:
- Low = 1–4
- High = 6–9
5 can be either high or low, whichever maintains the alternating pattern.
The line may start with either high or low.
Power of 2 (Row Constraint):
Each row contains the digits of 2ⁿ, where n is the row number. These digits must appear consecutively in that row (in any order). For example:
- Row 4 contains 1 and 6 (for 16)
- Row 7 contains 1, 2, and 8 (for 128)
Digits forming powers of 2 may not appear in any other row, except for 2, 4, and 8, which are allowed anywhere due to normal Sudoku rules.
Solution code: row 5, column 5
Comments
on 30. July 2025, 22:59 by dzamie
I'm not sure the power of 2 negative constraint is necessary, but it's pretty cool that it works out like that!
on 28. July 2025, 23:22 by Chanome
I think some clarifications could be made. According to the rule Power of 2, is this allowed 146, or must it strictly be 16
on 28. July 2025, 21:53 by SKORP17
unklare Regel
16 ist eine Zweierpotenz also darf die 1 und 6 in keiner anderen Zeile vorkommen, oder bezieht sich das auf die Kombination 16 bzw 61
on 28. July 2025, 18:33 by TerrierDarts
fixed code
on 28. July 2025, 18:31 by TerrierDarts
Edited Pad Link to match error in rules
on 28. July 2025, 18:24 by TerrierDarts
Removed Unclear rule rg, Orange cages
