Rules:
Sudoku: Fill every row, column and marked 3x3 box with the digits 1-9.
Killer: In cages marked with a black dashed line digits must not repeat and have to add up to the total given in the top left corner of the cage.
Entropy: The low digits (1, 2, 3), middle digits (4, 5, 6) and high digits (7, 8, 9) are defined as three different groups. In the finished grid each 2x2 box has to contain at least one digit of each group.
Have fun solving!
Solution code: Row 9 followed by column 9 (18 digits)
on 20. September 2023, 22:05 by madhupt
This was extremely hard for me. But very tiny bits of logic kept us hing forward in very small steps. Very very resistant at every stage. I don’t know if I really were able to get the intended solve path. Thanks a lot for this extremely hard nut to crack.
on 19. September 2023, 19:26 by h5663454
A wonderful start,
a wonderful process,
and a worst ending...