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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 for extra tips and tricks.

Light Up Puzzle


What are the numbers for?
Each number tells us how many Lights surround that square.



Walkthrough

Help 1


Step 1
This is the start of the puzzle.

Solve this puzzle for yourself at the same time.

Help 2


Step 2
None of these squares can be Lights as they all surround 0 clues.

Help 3


Step 3
These are the only three squares that can satisfy the 3 clue.

Help 4


Step 4
This is the only square that can light the indicated square.

Help 5


Step 5
This is the only remaining square to complete the 2 clue.

Help 6


Step 6
These are the only remaining squares to satisfy the 2 clue.

Help 7


Step 7
This is the only square that can light the indicated square.

Help 8


Step 8
This is the only square that can light the indicated square.

Help 9


Step 9
This square must be a light.

Help 10


Step 10
The completed puzzle.


 

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[Added October 2006]

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