Logic Masters Deutschland e.V.

Rules:

Normal Sudoku rules apply.

Digits in cages must not repeat. Values in cages must sum to the given total.

Exactly one cell in every row, column, and 3x3 box is an anti-cell, each containing a different digit. The value of an anti-cell is the negative value of the digit it contains. Additionally, no anti-cell is a Chess knight's move away from another anti-cell, and no cell a knight's move away from an anti-cell can contain the same digit as that anti-cell. The locations of the anti-cells are to be determined by the solver.

Play on SudokuPad

Play on F-Puzzles

Notes:

This is my first Sudoku setting ever. I wanted to enter the field with a somewhat original concept, so I decided to try implementing negative numbers as a variation on doubler cells. Killer cages only made sense, and the final addition of the lopsided anti-knight constraint helped turn this into a puzzle I'm extremely proud of as my debut.

Big thanks to the CTC Discord for testing. Special thanks to MaizeGator for providing feedback and to SamuPiano for his praise of the puzzle and for encouraging me to post it here.