Logic Masters Deutschland e.V.

This puzzle can be played on Sven's SudokuPad (the CtC app)



- Normal Sudoku: Place the digits 1-4 in every row, column, and 2-by-2 box.
- Killer Cages: The VALUES of a cage sum to the number at its top-left corner.
- Modifier Cells: Each cell is exactly one of four special types (doubler, halver, hot, cold). For any given type, there is one cell of that type in each row, column, and 2-by-2 box. No two cells of the same type have the same digit.
- Doublers: The value of a doubler cell is double its digit.
- Halvers: The value of a halver cell is half its digit.
- Hot Cells: The value of a hot cell is one more than its digit.
- Cold Cells: The value of a cold cell is one less than its digit.