Solutions

Level 1 - 10x10 Grid - 60 White Cells

One of many solutions

Level 2 - 3x3 Grid - 7 White Cells

The only solution

Level 3 - 3x3 Grid - 3 White Cells, 3 Red Cells

The only solution

Level 4 - 4x4 Grid - 8 White Cells, 5 Red Cells

One of a few solutions

Level 5 - 4x4 Grid - 10 White Cells, 1 Purple Cell

One of a few solutions

Level 6 - 4x4 Grid - 12 White Cells, 1 Purple Cell, 1 Grey Cell

One of a few solutions

Level 7 - 4x4 Grid - 5 White Cells, 7 Yellow Cells, 1 Purple Cell

The only solution