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.

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Light Up


7x7 Light Up Easy | 7x7 Light Up Normal | 7x7 Light Up Hard | 10x10 Light Up Easy | 10x10 Light Up Normal | 10x10 Light Up Hard | 14x14 Light Up Easy | 14x14 Light Up Normal | 14x14 Light Up Hard | 25x25 Light Up Easy | 25x25 Light Up Normal | 25x25 Light Up Hard

This Month
1. Sonar
64
00:05.12
2. sauceguardian
39
00:06.13
3. Dymond
144
00:07.15
4. nassimab1
19
00:07.26
5. SliverHawk
64
00:07.57
6. kennethaw88
42
00:07.95
7. N4p4l44
93
00:08.16
8. bjbjb 00:08.30
9. Noooo-dle
15
00:08.33
10. CreamKing
10
00:08.84
11. MARTIN1979
56
00:08.87
12. tufelix367 00:08.93
13. TomGuo
84
00:08.97
14. Fred522 00:09.04
15. verberos
11
00:10.15
16. teliot 00:10.43
17. lanshangfaren
20
00:10.78
18. rtj
160
00:10.82
19. honeychen45
45
00:10.90
20. Eamo Rebel
9
00:11.52
This Week
1. sauceguardian
39
00:06.13
2. kennethaw88
42
00:07.95
3. bjbjb 00:08.30
4. Noooo-dle
15
00:08.33
5. CreamKing
10
00:08.84
6. tufelix367 00:09.35
7. TomGuo
84
00:09.64
8. verberos
11
00:10.15
9. teliot 00:10.43
10. rtj
160
00:10.82
11. feasel
33
00:11.91
12. asdfqwer 00:12.35
13. Jens
18
00:14.21
14. nabifan
14
00:14.99
15. West United
47
00:20.48
16. chengin
8
00:22.54
17. curi
20
00:25.28
18. ChiefOsceola 00:25.57
19. yngve 00:26.29
20. mvl666Darkrio
4
00:31.58
Today
1. verberos
11
00:10.15
2. TomGuo
84
00:15.80
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. mtanzer
123
00:05.22
2. sfumato
144
00:05.44
3. Arok
64
00:05.60
4. TashiroMiraki
118
00:06.24
5. Sonar
64
00:06.37
6. qqwref
129
00:06.64
7. numbrr
98
00:06.72
8. sauceguardian
39
00:06.75
9. Oryn
75
00:07.14
10. Nick
128
00:07.17
AO5
1. mtanzer
123
00:05.96
2. sfumato
144
00:06.02
3. Arok
64
00:06.06
4. TashiroMiraki
118
00:06.78
5. Sonar
64
00:06.81
6. qqwref
129
00:06.93
7. sauceguardian
39
00:07.30
8. Oryn
75
00:07.47
9. PuzzleMaestro
45
00:07.64
9. Nick
128
00:07.64
AO12
1. sfumato
144
00:06.43
2. mtanzer
123
00:06.94
3. Arok
64
00:07.29
4. Sonar
64
00:07.47
5. qqwref
129
00:07.94
6. TashiroMiraki
118
00:08.02
7. sauceguardian
39
00:08.07
8. numbrr
98
00:08.57
9. Daanbe
90
00:08.88
10. Nick
128
00:08.91
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.penguain
47
00:00.915
3.--- empty -----:--

* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
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2022-05-21 23:05:57

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