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
Position for user "PTTturing"
All time:n/aThis Month:n/aThis Week:n/aToday:n/a
This Month
1. isonan2025
2
 02:24.64
2. Oblique_Strophoid
55
 02:24.88
3. harveyrice
53
 02:25.10
4. quad
101
 02:32.28
5. Gaminator
77
 02:53.93
6. dailinli
59
 03:03.13
7. nestorgames 03:28.89
8. TillSt24 03:56.09
9. Kenolo353
123
 04:14.37
10. PuzzleMaestro
99
 04:19.52
11. PanamotoAT9288 04:29.98
12. ysh2020 04:33.32
13. anzuruni 04:52.11
14. Dorice
271
 04:56.37
15. Slitherking 05:05.73
16. buerrino 05:28.57
17. Oshca
15
 05:35.76
18. dekerstman5
71
 05:37.27
19. nbapip 05:49.86
20. BigTom 06:06.11
This Week
1. isonan2025
2
 02:24.64
2. dailinli
59
 03:03.13
3. nestorgames 03:37.03
4. TillSt24 03:56.09
5. PuzzleMaestro
99
 04:19.52
6. anzuruni 04:52.11
7. PanamotoAT9288 04:59.23
8. AkaHanaYo 06:28.22
9. WinterMelon
15
 07:03.41
10. JohnnyB 07:07.70
11. 20010102tyr 07:33.28
12. mudri 07:51.70
13. qobi
240
 08:39.70
14. Wolverine
16
 10:08.33
15. yuanjin
20
 11:01.52
16. GaryMilligan 12:07.09
17. Yoshy 15:24.57
18. blacksheepx 15:51.59
19. ktymhyo 16:00.10
20. MitkoN 18:08.99
Today
1. nestorgames 03:37.03
2. PanamotoAT9288 05:43.92
3. JohnnyB 07:23.59
4. Wolverine
16
 10:08.33
5. blacksheepx 15:51.59
6. MitkoN 18:08.99
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. numbrr
321
 01:58.64
2. Ronja
124
 02:19.34
3. KkLewandowski
84
 02:26.06
4. cknori95
65
 02:32.17
5. Oblique_Strophoid
55
 02:33.25
6. chihiro
92
 02:42.51
7. Bluegill16384
216
 02:44.05
8. Gaminator
77
 02:45.61
9. quad
101
 02:56.30
10. dailinli
59
 03:09.79
AO5
1. numbrr
321
 02:01.94
2. Ronja
124
 02:27.60
3. KkLewandowski
84
 02:28.30
4. cknori95
65
 02:38.60
5. Oblique_Strophoid
55
 02:42.97
6. Bluegill16384
216
 02:49.60
7. Gaminator
77
 02:53.28
8. quad
101
 03:01.58
9. Anders Christiansen
90
 03:20.07
10. TCL
281
 03:22.71
AO12
1. numbrr
321
 02:12.45
2. KkLewandowski
84
 02:35.59
3. Ronja
124
 02:42.32
4. cknori95
65
 02:50.39
5. Gaminator
77
 02:59.29
6. Bluegill16384
216
 03:06.51
7. quad
101
 03:13.80
8. Oblique_Strophoid
55
 03:21.65
9. Anders Christiansen
90
 03:41.31
10. TCL
281
 03:41.95
Robots / programmatic solversinfo  
1.siebi
1
00:00.011
2.joshprzybyszewski
18
00:00.064
3.exabyte_bot
3
00:00.204

* 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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