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
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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. Oblique_Strophoid
56
 02:09.14
2. isonan2025
2
 02:24.64
3. Gaminator
77
 02:41.67
4. magarner
35
 02:47.35
5. dailinli
60
 03:03.13
6. cknori95
65
 03:04.09
7. nestorgames 03:16.25
8. Ronja
124
 03:16.49
9. fufafofofofafuu 03:28.39
10. ggggguava
93
 03:31.84
11. Chamelumi
55
 03:39.39
12. fufafofafufi 03:42.44
13. CTCCTES 03:53.09
14. TillSt24 03:56.09
15. francolq
15
 04:08.26
16. PuzzleMaestro
100
 04:19.52
17. PanamotoAT9288 04:41.15
18. anzuruni 04:52.11
19. 陳昇展
44
 05:14.05
20. nbapip 05:17.12
This Week
1. magarner
35
 02:47.35
2. nestorgames 03:16.25
3. Ronja
124
 03:16.49
4. fufafofofofafuu 03:28.39
5. anzuruni 04:54.17
6. Azalia 06:21.59
7. qobi
241
 06:30.47
8. takaz 07:01.74
9. Wolverine
20
 08:52.80
10. EthrDemon 10:16.66
11. byer ship
16
 11:31.70
12. beardedfoot
17
 13:33.24
13. BobStein
47
 16:15.18
14. Alif1 22:08.05
15. ktymhyo 22:15.90
16. Classh
17
 28:01.57
17. rpssl 54:00.03
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Azalia 06:21.59
2. byer ship
16
 11:31.70
3. rpssl 54:00.03
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.anonymous
322
 01:58.64
2. Ronja
124
 02:19.34
3. KkLewandowski
85
 02:26.06
4. cknori95
65
 02:32.17
5. Oblique_Strophoid
56
 02:33.25
6. chihiro
92
 02:42.51
7. Bluegill16384
216
 02:44.05
8. Gaminator
77
 02:45.61
9. quad
103
 02:56.30
10. dailinli
60
 03:09.79
AO5
1.anonymous
322
 02:01.94
2. Ronja
124
 02:27.60
3. KkLewandowski
85
 02:28.30
4. Oblique_Strophoid
56
 02:36.89
5. cknori95
65
 02:38.60
6. Bluegill16384
216
 02:49.60
7. Gaminator
77
 02:53.28
8. quad
103
 03:01.58
9. magarner
35
 03:11.26
10. Anders Christiansen
90
 03:20.07
AO12
1.anonymous
322
 02:12.45
2. KkLewandowski
85
 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
103
 03:13.80
8. Oblique_Strophoid
56
 03:21.65
9. Anders Christiansen
90
 03:41.31
10. TCL
282
 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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