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. numbrr
201
00:37.29
2. DarkChamp 00:43.82
3. TashiroMiraki
174
00:46.96
4. mmyama
46
01:07.65
5. highprime
69
01:08.89
6. gtkrouwel
75
01:09.32
7. liyan
98
01:16.05
8. zdz
52
01:18.63
9. homo1919810 01:20.80
10. zhuxi1104 01:26.64
11. woshixiaoO 01:29.51
12. iovichulo413
36
01:30.31
13. zyffr
20
01:31.83
14. tt1029
15
01:32.64
15. Thrillhou 01:38.28
16. 飞飞
30
01:39.84
17. ahhhhhvvvvvv
36
01:40.14
18. erichiro 01:42.43
19. nbapip 01:43.36
20. Baileyrocks345 01:44.18
This Week
1. DarkChamp 00:49.57
2. mmyama
46
01:11.03
3. gtkrouwel
75
01:19.63
4. zhuxi1104 01:26.64
5. zyffr
20
01:31.83
6. tt1029
15
01:32.64
7. highprime
69
01:33.29
8. Baileyrocks345 01:44.18
9. Bhaygin 01:49.47
10. maciej lagoda
100
01:53.75
11. pastoolio 01:56.04
12. Thrillhou 01:57.53
13. Spatharios
4
02:04.11
14. Aysha
39
02:06.32
15. DrVince
59
02:15.43
16. wamfly 02:17.48
17. aequidens
185
02:18.06
18. Rompi2 02:25.80
19. Wabznazm
28
02:30.25
20. noliai
140
02:34.14
Today
1. highprime
69
01:33.29
2. zyffr
20
02:06.08
3. tt1029
15
02:47.62
4. xzaxzaazx
36
04:24.30
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. numbrr
201
00:53.23
2. TashiroMiraki
174
00:55.00
3. sfumato
164
01:02.97
4. Mark M.
89
01:05.23
5. mtanzer
140
01:08.67
6. dxjonas
59
01:18.14
7. Thomas Garner
122
01:18.81
8. Dust14
70
01:21.04
9. TomGuo
131
01:21.64
10. qqwref
258
01:22.19
AO5
1. numbrr
201
00:56.98
2. TashiroMiraki
174
01:00.26
3. Mark M.
89
01:05.59
4. mtanzer
140
01:09.99
5. dxjonas
59
01:17.03
6. Oryn
122
01:22.20
7. Dust14
70
01:22.53
8. Thomas Garner
122
01:23.39
9. qqwref
258
01:24.39
10. highprime
69
01:26.40
AO12
1. numbrr
201
01:10.81
2. TashiroMiraki
174
01:11.46
3. Mark M.
89
01:25.52
4. mtanzer
140
01:26.99
5. qqwref
258
01:37.81
6. dxjonas
59
01:38.63
7. crascodyllea
85
01:41.84
8. Thomas Garner
122
01:43.64
9. highprime
69
01:45.67
10. Nick
217
01:45.87
Robots / programmatic solversinfo  
1.tlstyer
1325
00:00.015
2.preciousmouse
67
00:01.075
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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2023-12-10 10:52:08

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