This programs helps you solve existing LiteIt puzzles as well as create new ones. LiteIt consists of a grid comprising empty cells, black cells, and cells with numbers 0 to 4. Challenge is to:

Illuminate all the empty cells by placing -light bulbs- at empty locations.
A bulb placed at a cell will light up all the cells in its row and column.
No two bulbs must face each other.
A numbered cell must have exact number of bulbs around the cell, eg a cell with number 1 must have one and only bulb around it etc. Cell with number 0 cannot have any bulb around it.
Sounds simple but hard to figure out. Keep learning and have fun.

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