Logic Masters Deutschland e.V.

Sudoku: Normal Sudoku rules apply.

German Whispers: Along green lines, values must differ from their neighbors by at least 5.

Skyscrapers: Each value in the grid represents the height of a building in its cell. Taller buildings obstruct the view of shorter ones behind them (Or ones of the same height). Clues outside the grid give the number of buildings visible from that vantage point in the clue's row or column.

Each row, column, and 3x3 box contains a misshapen cell. A misshapen cell has a value equivalent to either double its digit or half its digit. Fractional values are allowed. Each digit 1-9 is misshapen exactly once.

Sudoku: Normal Sudoku rules apply.

SudokuPad link