Light Up


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Light Up (Akari) is a logic puzzle with simple rules and challenging solutions.

The rules are simple.Light Up is played on a rectangular grid. The grid has both black cells and white cells in it. The objective is to place light bulbs on the grid so that every white square is lit. A cell is illuminated by a light bulb if they're in the same row or column, and if there are no black cells between them. Also, no light bulb may illuminate another light bulb.
Some of the black cells have numbers in them. A number in a black cell indicates how many light bulbs share an edge with that cell.
Left click a square to place a light bulb. Right click to mark with X.

Video Tutorial
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Light Up

Speed Rank Statistics - numbrr

Player rank: 1 / 135127
Total score: 4076.358
Find it
Global position
1. numbrr
323
4076.358
2. qqwref
266
2825.967
3. Make
288
2518.163
4. jaybrainer
279
2440.007
5. vowels
216
2333.552
Puzzle position (light-up)
1. numbrr
323
147.072
2. gt83
141
119.887
3. Yeti
143
117.012
4. TashiroMiraki
233
115.641
5. mtanzer
140
115.197
The scores are updated every hour
score = log10(number of players / player rank)
 
best
mo3
ao5
ao12
all
 
www.puzzle-light-up.com