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. TashiroMiraki
98
00:02.17
2. Nick
100
00:02.89
3. Oryn
63
00:02.94
4. qqwref3
60
00:02.95
5. sfumato
127
00:03.04
6. Dimples524
33
00:03.23
7. sauceguardian
25
00:03.25
7. Daanbe
54
00:03.25
9. Fastfaxer
100
00:03.33
10. vowels
89
00:03.40
11. Zed
10
00:03.73
12. Yamasan
27
00:03.76
13. numbrr
65
00:03.84
14. MARTIN1979
34
00:03.96
15. SlowBear
11
00:04.00
16. Dovenburg 00:04.13
17. bjbjb 00:04.35
18. NoahR
134
00:04.39
19. Piroska9
34
00:04.46
19. Volublebohemian
4
00:04.46
This Week
1. Nick
100
00:02.89
2. Oryn
63
00:02.94
3. sauceguardian
25
00:03.25
4. Fastfaxer
100
00:03.33
5. Zed
10
00:03.73
6. numbrr
65
00:03.84
7. qqwref3
60
00:03.86
8. MARTIN1979
34
00:04.00
9. Volublebohemian
4
00:04.46
9. bjbjb 00:04.46
11. fimcg 00:04.47
12. Piroska9
34
00:04.58
13. Haruka
13
00:04.84
14. eonhochang
25
00:05.37
15. Shogia#2908
15
00:05.43
16. tufelix367 00:05.56
17. IzAlexandre2
33
00:06.03
18. BigManStefan
10
00:06.04
19. Trnsistr 00:06.05
20. TomGuo
66
00:06.08
Today
1. Trnsistr 00:06.05
2. HackMan 00:06.34
3. Jens
9
00:07.48
4. Philipvdp 00:09.63
5. Sekret 00:10.75
6. Plexy 00:14.42
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. Arok
56
00:02.34
2. sfumato
127
00:02.50
3. mtanzer
104
00:02.67
4. TashiroMiraki
98
00:02.86
5. qqwref3
60
00:03.34
6. sauceguardian
25
00:03.36
7. Delabranche
50
00:03.44
8. Nick
100
00:03.54
9. Oryn
63
00:03.58
10. Sonar
55
00:03.61
AO5
1. Arok
56
00:02.45
2. sfumato
127
00:02.73
3. mtanzer
104
00:02.88
4. TashiroMiraki
98
00:03.15
5. Delabranche
50
00:03.51
6. qqwref3
60
00:03.53
7. Nick
100
00:03.61
8. Sonar
55
00:03.67
9. sauceguardian
25
00:03.74
10. Oryn
63
00:03.78
AO12
1. Arok
56
00:03.01
2. sfumato
127
00:03.16
3. mtanzer
104
00:03.32
4. TashiroMiraki
98
00:03.87
5. sauceguardian
25
00:04.12
6. qqwref3
60
00:04.15
7. PuzzleMaestro
43
00:04.23
8. Oryn
63
00:04.30
9. Nick
100
00:04.38
10. Sonar
55
00:04.42
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.penguain
40
00:00.676
3.rfsjnhdbh04:01.657

* 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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2022-01-28 08:39:57

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