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. MrCheese
24
 00:15.26
2. quad
106
 00:23.89
3. magarner
70
 00:24.02
4. 20010102tyr 00:28.64
5. Chamelumi
61
 00:31.40
6. Aou73
47
 00:33.81
7. fufafofofofafuu 00:34.87
8. TriMet
36
 00:35.14
9. dailinli
62
 00:36.21
10. fufafofafufi 00:36.25
11. Azether
43
 00:38.95
12. PanamotoAT9288 00:39.15
13. unsung 00:40.18
14. nornsforever 00:47.68
15. iwikswjd 00:51.10
16. RobertFuego 00:52.92
17. homer 00:55.19
18. takaz 00:56.12
19. qobi
243
 00:57.95
20. kennethaw88
164
 01:01.17
This Week
1. 20010102tyr 00:28.64
2. PanamotoAT9288 00:51.51
3. iwikswjd 00:54.51
4. homer 00:55.19
5. nornsforever 00:59.13
6. GaryMilligan 01:09.54
7. qobi
243
 01:11.00
8. SnowCrash 01:17.39
9. EthrDemon 01:28.22
10. Soudruh 01:30.43
11. dcaso13
19
 01:32.14
12. BigHeadGriffin
37
 01:32.21
13. Potato attack
53
 01:32.50
14. rsub3bnp 01:44.22
15. Yyf丶Alan
16
 01:48.91
16. xilli 01:59.76
17. Forntoth 02:13.62
18. Jildou Wink
12
 02:13.73
19. mts55
48
 02:16.66
20. Mikkun1 02:23.78
Today
1. dcaso13
19
 01:32.14
2. magarner
70
 6d 06:48:44.47
3.--- empty -----:--
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10.--- empty -----:--
11.--- empty -----:--
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20.--- empty -----:--
MO3
1. numbrr
327
 00:21.13
2. PuzzleMaestro
109
 00:23.20
3. KkLewandowski
87
 00:25.70
4. quad
106
 00:25.72
5. magarner
70
 00:26.41
6. cknori95
65
 00:27.69
7. Ronja
127
 00:29.32
8. biopower
160
 00:30.74
9. Make
288
 00:31.96
10. Bluegill16384
219
 00:32.02
AO5
1. numbrr
327
 00:23.61
2. PuzzleMaestro
109
 00:24.86
3. KkLewandowski
87
 00:26.04
4. magarner
70
 00:27.13
5. cknori95
65
 00:29.05
6. quad
106
 00:29.37
7. Ronja
127
 00:31.28
8. chihiro
92
 00:32.33
9. Bluegill16384
219
 00:32.89
10. Make
288
 00:33.33
AO12
1. numbrr
327
 00:25.39
2. magarner
70
 00:30.32
3. KkLewandowski
87
 00:30.52
4. quad
106
 00:32.00
5. cknori95
65
 00:32.55
6. PuzzleMaestro
109
 00:33.43
7. Ronja
127
 00:33.92
8. Bluegill16384
219
 00:35.36
9. biopower
160
 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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