Slitherlink


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Slitherlink (also known as Fences and Loop the Loop) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. You have to draw lines between the dots to form a single loop without crossings or branches. The numbers indicate how many lines surround it.
Left click between the dots to connect them. Right click to mark with X.

Video Tutorial
Hide the rules
Slitherlink


5x5 Normal Loop | 5x5 Hard Loop | 7x7 Normal Loop | 7x7 Hard Loop | 10x10 Normal Loop | 10x10 Hard Loop | 15x15 Normal Loop | 15x15 Hard Loop | 20x20 Normal Loop | 20x20 Hard Loop | 25x30 Normal Loop | 25x30 Hard Loop

New Puzzle
This Month
1. zzzzz0229
22
 00:14.79
2. martosss
98
 00:22.64
3. fufafofafufi 00:27.62
4. fufafofofofafuu 00:29.09
5. quad
87
 00:35.33
6. ysh2020 00:35.47
7. suzuho 00:36.69
8. BigTom 00:37.14
9. Kenolo353
120
 00:37.49
10. 3328037
72
 00:38.35
11. SpecialK68
48
 00:40.02
12. Nitish Bhardwaj
16
 00:42.13
13. ED section
14
 00:43.84
14. qobi
235
 00:44.53
15. Dorice
265
 00:45.56
16. beatrixwashere
115
 00:46.78
17. iofbh 00:48.21
18. vulture 00:49.76
19. Freddie3
11
 00:50.20
20. ankodama
31
 00:53.88
This Week
1. martosss
98
 00:25.68
2. fufafofafufi 00:30.58
3. fufafofofofafuu 00:31.79
4. suzuho 00:36.69
5. Kenolo353
120
 00:38.57
6. 3328037
72
 00:38.88
7. SpecialK68
48
 00:40.32
8. Nitish Bhardwaj
16
 00:43.70
9. Freddie3
11
 00:50.20
10. ankodama
31
 00:53.88
11. KlausS
24
 00:59.21
12. cecile 01:01.55
13. ED section
14
 01:05.69
14. eljot
32
 01:08.66
15. rurijj 01:08.71
16. huangzhishen 01:09.09
17. ost51 01:17.05
18. Ramana71 01:19.73
19. gorilla801
1
 01:22.55
20. tokitoki
7
 01:28.19
Today
1. suzuho 00:46.73
2. KlausS
24
 01:05.76
3. eljot
32
 01:15.64
4. ost51 01:22.90
5. Ramana71 01:26.30
6. Yokino
6
 01:51.80
7. YesShalashka
15
 02:19.93
8. yottyan 02:28.01
9. YanOto
4
 05:04.42
10. ningfan
1
 10:55.60
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. zzzzz0229
22
 00:16.10
2. numbrr
310
 00:18.09
3. PuzzleMaestro
90
 00:19.62
4. vowels
216
 00:19.82
5. cknori95
65
 00:22.44
6. home
208
 00:23.67
7. martosss
98
 00:23.85
8. KkLewandowski
80
 00:24.02
9. arcer
168
 00:25.43
10. Make
279
 00:25.91
AO5
1. zzzzz0229
22
 00:16.71
2. numbrr
310
 00:18.16
3. vowels
216
 00:20.40
4. PuzzleMaestro
90
 00:21.37
5. cknori95
65
 00:23.05
6. martosss
98
 00:23.95
7. home
208
 00:24.40
8. KkLewandowski
80
 00:25.38
9. Make
279
 00:26.14
10. bakpao
67
 00:26.80
AO12
1. numbrr
310
 00:19.72
2. vowels
216
 00:22.82
3. PuzzleMaestro
90
 00:23.50
4. cknori95
65
 00:24.37
5. home
208
 00:25.38
6. KkLewandowski
80
 00:26.12
7. martosss
98
 00:26.74
8. Make
279
 00:27.25
9. bakpao
67
 00:27.61
10. Bluegill16384
211
 00:29.00
Robots / programmatic solversinfo  
1.dbut2
38
00:00.008
2.joshprzybyszewski
18
00:00.060
3.jllachan00:00.509

* 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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