Logic Masters Deutschland e.V.

This is a collab between myself, wisty and bellsita. go check their puzzles out.

Fillmat: Divide the entire grid into 1xN or Nx1 regions, where N is from 1 to 4.
Two regions of the same size may not share an edge.
Region borders may not form any four-way intersections.

Yin Yang: Shade some cells in the grid so that all shaded cells are connected orthogonally, and all unshaded cells are connected orthogonally.
No 2x2 region may be entirely shaded or entirely unshaded.
The white circle marks an unshaded cell.

Hybrid clues: A number in a cell counts the number of shaded cells in the 3x3 area it is the center of (including itself), added to the size of its region.
A question mark represents any number, but "x" refers to the same number every time it appears.
Any region can contain at most one of these clues.



Penpa+