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. quad
103
 00:23.67
2. magarner
44
 00:26.17
3. harveyrice
53
 00:28.54
4. TriMet
36
 00:32.43
5. 飞飞
53
 00:32.83
6. 20010102tyr 00:34.01
7. yc40756 00:41.29
8. Go5Go
104
 00:43.59
9. PanamotoAT9288 00:45.54
10. dailinli
60
 00:45.88
11. wangsq
31
 00:47.69
12. RobertFuego 00:48.76
13. epicuro
6
 00:49.55
14. homer 00:52.40
15. unsung 00:53.16
16. iwikswjd 00:54.27
17. Azalia 00:57.95
18. 陳昇展
44
 01:01.46
19. WinterMelon
16
 01:01.76
20. kennethaw88
160
 01:02.03
This Week
1. magarner
44
 00:29.17
2. PanamotoAT9288 00:48.77
3. unsung 00:53.16
4. Azalia 00:57.95
5. iwikswjd 01:00.01
6. WinterMelon
16
 01:01.76
7. mudri 01:14.31
8. Mikkun1 01:29.84
9. katsudon
1
 01:30.48
10. Soudruh 01:42.91
11. Rockstah 01:52.41
12. CharmingBrain
16
 01:55.89
13. Wolverine
22
 01:57.89
14. EthrDemon 02:06.58
15. rurijj 02:17.10
16. jc2408a 02:28.42
17. Bezerkomonkey
16
 02:57.28
18. ArnoutBoer
13
 02:59.01
19. Forntoth 03:31.16
20. Leci
11
 03:41.50
Today
1. iwikswjd 01:00.01
2. Mikkun1 01:29.84
3. CharmingBrain
16
 01:55.89
4. Forntoth 03:31.16
5. Leci
11
 03:41.50
6. ArnoutBoer
13
 03:50.63
7. MetalRain
9
 04:14.21
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.anonymous
322
 00:21.13
2. PuzzleMaestro
101
 00:23.20
3. KkLewandowski
85
 00:25.70
4. cknori95
65
 00:27.69
5. quad
103
 00:28.63
6. Ronja
125
 00:29.32
7. magarner
44
 00:30.44
8. biopower
159
 00:30.74
9. Make
288
 00:31.96
10. Bluegill16384
216
 00:32.02
AO5
1.anonymous
322
 00:23.61
2. PuzzleMaestro
101
 00:24.86
3. KkLewandowski
85
 00:26.04
4. cknori95
65
 00:29.05
5. quad
103
 00:30.34
6. Ronja
125
 00:31.28
7. magarner
44
 00:32.13
8. chihiro
92
 00:32.33
9. Bluegill16384
216
 00:32.89
10. Make
288
 00:33.33
AO12
1.anonymous
322
 00:25.39
2. KkLewandowski
85
 00:30.52
3. cknori95
65
 00:32.55
4. quad
103
 00:32.59
5. PuzzleMaestro
101
 00:33.43
6. Ronja
125
 00:33.92
7. Bluegill16384
216
 00:35.36
8. magarner
44
 00:35.65
9. biopower
159
 00:36.25
10. Make
288
 00:37.65
Robots / programmatic solversinfo  
1.siebi
1
00:00.010
2.joshprzybyszewski
18
00:00.061
3.exabyte_bot
3
00:00.196

* 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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