Logic Masters Deutschland e.V.

• Normal sudoku rules apply.
• Squares contain even digits. The circle contains an odd digit.
• Black cages are killer cages.*
• Shaded cages are hunter cages.**
• A, B, and C each represent a consistent digit from 1-9, and may or may not be different from each other.

* In killer cages, digits do not repeat and sum to the number in the top left.
** Let a digit N placed in position P within a box index the cell that is position P in box N (counting boxes left to right, top to bottom). In hunter cages, the digits in cells indexed this way are listed in the top left.

Hunter cages are an indexing variant first developed by Bremster (Happy Birthday Brem!) and showcased in his puzzle Bounty. They have since been popularized as "psycho look-and-say" cages with clues written as look-and-say numbers. For those unfamiliar with this type of indexing, the LMD page for Bounty has a solvable 4x4 example.

Solve links:
• SudokuPad
• f-puzzles