For the digits 1 to 8, cells containing the same digit cannot be separated by a knight's move. For the digit 9, cells cannot be seperated by a king's move.
The grid is to be treated as a torus (rows 1 and 9 are adjacent and columns 1 and 9 are adjacent) and all constraints apply across all "edges".
Digits along an arrow sum to the digit(s) in the circle or pill at the end of the arrow. The pill-shape is to be read as a two digit number from left to right. Numbers may repeat along arrows if allowed by other rules.
Solid grey circles contain an odd digit.
am 6. Oktober 2021, 16:29 Uhr von uvo_mod
am 30. Mai 2021, 13:41 Uhr von Piatato