Normal Sudoku rules apply. Digits may not repeat in cages. Numbers in a cage indicate the difference between the sum of all even digits in the cage and the sum of all odd digits in the cage. (For example, a 3-cell cage containing 1-2-5 would have the number 4 (1+5-2), and a 3-cell cage containing 2-3-4 would have the number 3 (2+4-3).)
penpa f-puzzles CtCSolution code: Each of the 12 digits not in any cage, in reading order (no other characters)
on 27. November 2022, 18:49 by mathpesto
What a fantastic puzzle, and very promising considering this is your first :)
Thoroughly enjoyed!
on 26. November 2022, 23:53 by Niverio
Fascinating debut! Very fresh idea executed wonderfully!
on 26. November 2022, 21:41 by Totox00
Fixed incorrect description