Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

Cells separated by a chess king’s move cannot contain the same digit.

Digits on a purple line must form a set of consecutive, non-repeating digits in any order.

Digits on a green line must differ from their neighbours on the line by at least 5.

Cells separated by an X must contain digits summing to 10; cells separated by a V must contain digits summing to 5. Not all Xs and Vs are shown.

Cells with a grey square must be even.

Check the House on the Lake on f-puzzles.

... or, if you prefer, on the CTC App.