Logic Masters Deutschland e.V.

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Rules

Normal sudoku rules apply.
Holes: Place nine black holes, one in each row, column, and box. Digits may not repeat on black holes. Place 9 white holes that follow the same restrictions. White holes and black holes never share the same cell. The value of a black hole is zero. The value of a white hole is twice its digit. (The value of a non-hole is its digit.)
Cages: Digits in cages may not repeat (but values may). Values in a cage sum to the clue in the top left. A cage must contain the same number of black and white holes (it may have zero holes).
Hole Sandwiches: Clues outside the grid without arrows give the sum of the digits between the holes in the row or column, not including the holes.
Teleporting Little Killers: Clues outside the grid with arrows give the sum of values along a diagonally-traveling path starting in the cell pointed at by the arrow. This path only ends when it reaches an edge of the grid. When the path enters a black hole it teleports to the white hole with the same digit maintaining its direction and including both holes in its sum. The path may only visit white holes by teleporting to them.