Logic Masters Deutschland e.V.

Ruleset:

1. Normal Sudoku rules apply.

2. Modified Little Killer:

Little killer clues show even ("e") or odd ("odd"). This property is calculated by the following formula:

Clue = Parity[(Sum of digits)mod X]
- X is the first digit seen by the arrow.
- "mod" gives the remainder of the sum, when divided by X.
- "Parity" gives the parity (even or odd) of this remainder. 0 is an even number.

3. Modified Killer Cage:

Killer Cages show the same odd or even clues for the sum of their digits. The clue is calculated by the same formula given above. However, in this case X is the highest digit seen in the cage. Digits may repeat in a cage if allowed by other rules.

Link to the puzzle: Penpa+