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Daily Light Up 

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Puzzle Copyright © Kevin Stone

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Today's Light Up Puzzles 

 5 x  5 Easy Medium Hard
 7 x  7 Easy Medium Hard
10 x 10 Easy Medium Hard
15 x 15 Easy Medium Hard
20 x 20 Easy Medium Hard
25 x 25 Weekly Special

Note: take a look at the information about the difficulty levels.

All daily items change at midnight GMT – set your local time zone.


Objective / Rules
Light up every square in the grid.
A number in a square tells you how many bulbs surround that square (but not diagonally).
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.
A bulb can't light another bulb.

Read the help / walkthrough page on Light Up puzzles for a more detailed explanation and a walkthrough.

Note: only when supported by your computer / device / browser / etc.
Left-click = bulb >> X >> none.
Right-click = X >> bulb >> none.
Clicking a clue square will 'tick' it.

If 'auto-tick clues' is ticked / checked, the clues that have the correct number of bulbs and crosses surrounding them will be ticked (otherwise clues are unticked) – this does not neccessarily mean that the answer is correct.

If you click 'check' the system will check for incorrect squares. If 'show mistakes when checking' is ticked / checked they will be marked in red.

Show Dots
If you click 'show dots on lit squares' the system will show lit squares with the addition of a dot, which might make the lit squares easier to see.

This puzzle has exactly one correct answer, which can be found using logic and deduction alone, and no guesses are required. If you think that you have found another answer, then please check the rules carefully for a reason the other answer isn't allowed.

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