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. Nick
154
00:02.29
2. ProGamAR5 00:03.09
3. DrVince
45
00:03.10
4. 09Ash
1
00:03.34
5. sfumato
159
00:03.41
6. Yahya Farooq
2
00:03.44
7. Arjun25
19
00:03.46
8. Truth-or-Peace
33
00:03.55
9. Geras
65
00:03.66
10. mmyama 00:03.71
11. Tiago Gamito
11
00:03.72
12. SoyAboi
22
00:03.93
13. bjbjb 00:03.98
14. Martin Schuh
69
00:04.01
15. Schlamph 00:04.04
16. PythonPlayer 00:04.15
17. 3756081
9
00:04.16
18. Consonants
25
00:04.30
19. James O'Connor
2
00:04.33
20. benbnebenbne 00:04.45
This Week
1. Nick
154
00:02.57
2. DrVince
45
00:03.10
3. 09Ash
1
00:03.34
4. Yahya Farooq
2
00:03.44
5. Arjun25
19
00:03.46
6. Truth-or-Peace
33
00:03.55
7. Geras
65
00:03.66
8. bjbjb 00:04.13
9. James O'Connor
2
00:04.33
9. PythonPlayer 00:04.33
11. jorekami
45
00:04.67
12. TomGuo
101
00:05.08
13. papachan 00:05.26
14. snowfiledstars
3
00:05.70
15. Jens
23
00:05.78
16. sksgt 00:06.07
17. dattullsche 00:06.11
18. CipherStar
9
00:06.16
19. HackMan
27
00:06.83
20. Icosahedron 00:06.96
Today
1. HackMan
27
00:06.83
2. Icosahedron 00:06.96
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. Arok
68
00:02.20
2. vowels
162
00:02.32
3. sfumato
159
00:02.50
3. mtanzer
139
00:02.50
5. qqwref
188
00:02.55
6. Douglas Shamlin Jr.
422
00:02.68
7. numbrr
127
00:02.81
8. boru
56
00:02.85
9. TashiroMiraki
136
00:02.86
10. Sonar
75
00:02.95
AO5
1. Arok
68
00:02.36
2. vowels
162
00:02.55
3. Douglas Shamlin Jr.
422
00:02.58
4. mtanzer
139
00:02.63
5. sfumato
159
00:02.73
6. numbrr
127
00:02.81
7. qqwref
188
00:02.86
8. jai22933
12
00:03.04
9. boru
56
00:03.12
10. TashiroMiraki
136
00:03.15
AO12
1. Arok
68
00:03.01
2. vowels
162
00:03.07
3. mtanzer
139
00:03.09
4. sfumato
159
00:03.16
5. Douglas Shamlin Jr.
422
00:03.23
6. qqwref
188
00:03.41
7. numbrr
127
00:03.42
8. boru
56
00:03.45
9. jai22933
12
00:03.72
10. Sonar
75
00:03.74
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.penguain
50
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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2022-10-06 13:04:31

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