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

This Month
1. dkxxznxxx
25
00:01.79
2. lpbxrzpd
17
00:02.14
3. YetiDumb
68
00:02.79
4. Schlamph 00:03.12
5. SirFish 00:03.24
6. Kimseunghyeon 00:03.36
7. coolcoolguy65
132
00:03.37
8. mmyama
60
00:03.43
9. grimmgirlfandom
123
00:03.54
10. beznickowy 00:03.62
11. missPear
65
00:03.66
11. Jerz00 00:03.66
13. fimcg 00:03.75
14. TheCritic 00:03.84
14. arandomperson1
11
00:03.84
16. Kaizer1824#0246
43
00:03.94
17. Piroska9
51
00:03.96
18. Sombro64 00:04.06
19. SlimeNonoGram 00:04.11
20. Michelins
77
00:04.47
This Week
1. lpbxrzpd
17
00:02.14
2. coolcoolguy65
132
00:03.37
3. TheCritic 00:03.84
4. Kimseunghyeon 00:03.93
5. Piroska9
51
00:04.06
6. Schlamph 00:04.23
7. MSIA21
12
00:04.55
8. Koakuma
43
00:04.71
9. Sombro64 00:05.62
10. GaneshaFan316 00:05.72
11. vitamin 00:05.98
12. LSQUAREDMATH
24
00:06.08
13. Rod Ellison
28
00:06.30
14. edwin1302#0
29
00:06.60
15. angelrose971
86
00:06.68
16. Praktisix
54
00:06.97
17. whitevoidsky 00:07.00
18. noliai
170
00:07.19
19. 2333tracy 00:07.90
20. BurgerGrill 00:07.98
Today
1. noliai
170
00:07.28
2. GaneshaFan316 00:12.55
3. Aimar
22
24d 20:31:23.64
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. jaybrainer
206
00:01.83
2. vowels
214
00:02.19
3. Arok
103
00:02.20
4. numbrr
263
00:02.26
5. sfumato
164
00:02.50
5. mtanzer
140
00:02.50
7. BingBongBob
107
00:02.53
8. qqwref
259
00:02.55
9. SkyBean1201
55
00:02.59
10. dkxxznxxx
25
00:02.61
AO5
1. jaybrainer
206
00:01.97
2. vowels
214
00:02.33
3. numbrr
263
00:02.36
3. Arok
103
00:02.36
5. Douglas Shamlin Jr.
649
00:02.58
6. SkyBean1201
55
00:02.61
7. mtanzer
140
00:02.63
8. sauceguardian
89
00:02.67
9. boru
97
00:02.68
10. sfumato
164
00:02.73
AO12
1. jaybrainer
206
00:02.49
2. vowels
214
00:02.67
3. numbrr
263
00:02.82
4. Arok
103
00:02.90
5. Douglas Shamlin Jr.
649
00:03.00
6. mtanzer
140
00:03.09
7. sfumato
164
00:03.16
8. sauceguardian
89
00:03.18
9. TashiroMiraki
202
00:03.27
10. qqwref
259
00:03.28
Robots / programmatic solversinfo  
1.tlstyer
86
00:00.009
2.penguain
57
00:00.676
3.Sombro6400:07.279

* 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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2024-10-15 08:40:23

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