Solve a random Easy - Medium - Hard Japanese-style logic puzzle chosen from today's collection.
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Today's Light Up Puzzles
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
All daily items change at midnight GMT (UTC+0).
Objective / Rules
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.
Read the help / walkthrough page on Light Up 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.
Note: if 'Auto-tick clues' is 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 checked they will be marked in red.
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.
Every BrainBashers puzzle has exactly one correct answer, which can be found using logic and deduction alone, and no guesses are ever 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.
Note: BrainBashers has a Dark Mode setting.