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. *** *****
137
00:09.04
2. mmyama
63
00:09.10
3. ZebraKing
84
00:09.36
4. Kimseunghyeon 00:09.76
5. COlDAiR
24
00:10.85
6. Pope Gadget
27
00:12.64
7. geyik
170
00:13.41
8. RForce
48
00:13.58
9. Lua
104
00:14.61
10. davsbos 00:14.70
11. noliai
177
00:15.24
12. Dorice
227
00:15.71
13. dtyamada
89
00:16.23
14. Hwellyn
36
00:16.78
15. roxoda
57
00:19.38
16. Flo Folding
12
00:19.56
17. randomflyintaco
89
00:21.02
18. Ronaca 00:22.57
19. Zoop
14
00:22.98
20. AnonyMinor
28
00:23.01
This Week
1. *** *****
137
00:09.04
2. mmyama
63
00:09.10
3. Kimseunghyeon 00:11.23
4. dtyamada
89
00:16.23
5. Hwellyn
36
00:16.78
6. Dorice
227
00:17.06
7. noliai
177
00:17.14
8. roxoda
57
00:19.38
9. Flo Folding
12
00:19.56
10. AnonyMinor
28
00:23.01
11. Aal
14
00:47.74
12. ScorpionMax 02:01.18
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. mmyama
63
00:10.60
2. roxoda
57
00:19.38
3. Flo Folding
12
00:19.56
4. AnonyMinor
28
00:23.01
5. noliai
177
00:36.60
6. Dorice
227
00:53.01
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. numbrr
269
00:06.66
2. mtanzer
140
00:06.82
3. sfumato
164
00:06.86
4. jaybrainer
210
00:07.06
5. Oryn
148
00:07.13
6. TashiroMiraki
210
00:07.30
7. Arok
104
00:07.42
8. Douglas Shamlin Jr.
661
00:08.36
9. 2015YINJ02
147
00:08.44
10. qqwref
259
00:08.57
AO5
1. numbrr
269
00:06.84
2. mtanzer
140
00:07.17
3. sfumato
164
00:07.60
4. Oryn
148
00:08.02
5. TashiroMiraki
210
00:08.17
6. Arok
104
00:08.35
7. qqwref
259
00:08.60
8. 2015YINJ02
147
00:08.69
9. Nick
217
00:08.94
10. jaybrainer
210
00:09.14
AO12
1. numbrr
269
00:08.56
2. TashiroMiraki
210
00:08.76
3. mtanzer
140
00:09.04
4. Oryn
148
00:09.48
5. sfumato
164
00:09.69
6. qqwref
259
00:10.55
7. Arok
104
00:10.68
8. jaybrainer
210
00:11.03
9. summernight
189
00:11.67
10. Nick
217
00:11.88
Robots / programmatic solversinfo  
1.tlstyer
95
00:00.009
2.--- empty -----:--
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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2024-12-09 16:03:18

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