Logic Masters Deutschland e.V.

Rules:

Normal sudoku rules apply.

Yin Yang: Shade some cells such that all shaded cells are orthogonally connected, all unshaded cells are orthogonally connected, and no 2x2 area is fully shaded or fully unshaded.

Consecutive shade: Digits in orthogonally adjacent cells that are both shaded must be consecutive.

Arrows: A digit in a cell containing an arrow counts the total number of shaded cells in the direction of the arrow, not counting the cell itself.