Puzzle 52 - Room and Reason 5

I have to go to bed now, so the other two puzzles will wait until later.

Puzzle 30 - Room and Reason 4

I need to stop making these types of puzzles at this one place.  I always find a bunch of mistakes every time.  Last time I made one there, it turned into Room and Reason 2.

Puzzle 13 - Room and Reason 3

Puzzle 6 - Room and Reason 2

This one took ages.  I kept finding mistakes and trying to fix them, and at one point scrapped a third of the whole thing.  But it finally came out fine.

Puzzle 5 - Room and Reason 1

Rules - Room and Reason

Room and Reason was invented by the Japanese puzzle company Nikoli.  The name is from mathgrant.

1. Make each cell white or black.

2. The grid is divided into rectangular "rooms".  Rooms with numbers in their corners must have that number of black cells in them.  Rooms without numbers may have any number of black cells in them.

3. White cells may not go through more than two rooms in an uninterrupted horizontal or vertical line.

4. No two black cells may share an edge.

5. All white cells must be connected to each other through their edges.