    Light Up Help Rules / Objectives Summary

• Light up every square in the grid.
• A number in a square indicates how many bulbs share an edge (but not diagonally) with that square.
• A square is lit if it's in the same row or column as a bulb, as long as there are no Black blocks between them.
• No bulb may light another bulb.

See the Walkthrough below for extra tips and tricks. What are the numbers for?Each number tells us how many Lights surround that square.  Walkthrough  Step 1This is the start of the puzzle.Solve this puzzle for yourself at the same time.  Step 2None of these squares can be Lights as they all surround 0 clues.  Step 3These are the only three squares that can satisfy the 3 clue.  Step 4This is the only square that can light the indicated square.  Step 5This is the only remaining square to complete the 2 clue.  Step 6These are the only remaining squares to satisfy the 2 clue.  Step 7This is the only square that can light the indicated square.  Step 8This is the only square that can light the indicated square.  Step 9This square must be a light.  Step 10The completed puzzle.    