dpadawer

Noodles

Draw lines through all unshaded cells.

Lines cannot cross or branch off and cannot form loops.

Each line must form exactly one 2x2 region.

A number indicates how many noodle endpoints are in the 4 orthogonally adjacent cells.

One example puzzle with its solution (click to solve on Penpa+): Solution to example

Click the images to solve on Penpa+.