Sandwich Sudotakuzu (Binairo Sudoku)
(Published on 2. October 2021, 02:06 by thoughtbyte)
Normal Sudoku rules apply. Additionally:
1. Takuzu (Binairo) cage: inside the cage each row and column must have an equal number of evens and odds, no more than two of the same parity can be adjacent, and no two rows or two columns can have identical patterns of parity.
2. Standard sandwich: clues outside the grid give the sum of the cells "sandwiched" between the 1 and 9 in their row/column.
3. Standard even/odd: cells with grey squares must be even; cells with grey circles must be odd.
F-Puzzles: https://f-puzzles.com/?id=ygns7jsp
CTC: https://tinyurl.com/binairosudokuctc
sudokulab: https://tinyurl.com/binairosudokusl
Solution code: Row 1, column 9.
Comments
on 5. November 2021, 22:31 by thoughtbyte
edit difficulty
on 27. October 2021, 08:05 by thoughtbyte
Thank you Mark Sweep, I appreciate the feedback!
on 10. October 2021, 09:02 by Mark Sweep
Very nice puzzle! I never thought Binairo could be used in such a good way.
on 2. October 2021, 19:44 by thoughtbyte
Thank you mathpesto! I was pleasantly surprised with how well this combination worked.
on 2. October 2021, 17:12 by mathpesto
Nice puzzle! I hadn't done binairo so that made it a good challenge, and that rule worked really well with sandwich sudoku!
