Logic Masters Deutschland e.V.

This was set for Scojo's Setting Saturday prompts. gdc redeemed this prompt to create a mad fold-in puzzle.

Thanks to lmdemasi for testing!

Rules:

• Normal sudoku rules apply.

• Mad Fold-In: If the cells between the dashed columns are removed, all clues fold into valid clues in the resulting 4x9 grid.

• Digits in killer cages do not repeat and sum to the value in the top left corner. X, Y, and Z have the same value across clues.

• Two cells a chess knight's move away must contain different digits. This must be true even after the grid has been folded.