Yin-Yang


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Yin-Yang is a logic puzzle with simple rules and challenging solutions.

The rules are simple.Yin-Yang is played on a rectangular grid with no standard size. Some cells start out filled with black or white. The rest of the cells are empty. The goal is to color all cells in such a way that:
1. All black cells should be connected orthogonally in a single group.
2. All white cells should be connected orthogonally in a single group.
3. 2x2 areas of the same color are not allowed.

These 3 simple rules lead to some complex deductions, which are not so obvious. There are 2 important lemmas based on them, without which even the easy Yin-Yang puzzles seem very hard or even impossible to approach. You can learn these lemmas in the video tutorial below.

Video Tutorial
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Yin-Yang


6x6 Easy Yin-Yang | 6x6 Normal Yin-Yang | 6x6 Hard Yin-Yang | 10x10 Easy Yin-Yang | 10x10 Normal Yin-Yang | 10x10 Hard Yin-Yang | 15x15 Easy Yin-Yang | 15x15 Normal Yin-Yang | 15x15 Hard Yin-Yang | 20x20 Easy Yin-Yang | 20x20 Normal Yin-Yang | 20x20 Hard Yin-Yang | 25x25 Easy Yin-Yang | 25x25 Normal Yin-Yang | 25x25 Hard Yin-Yang

This Month
1. dvsc08
59
02:36.94
2. AnonyMinor
58
03:03.70
3. Oryn
155
03:09.18
4. Wuni14 03:11.89
5. NaluXV1 03:32.32
6. qobi
230
03:41.67
7. HackMan
113
03:41.90
8. Maelwys 03:42.68
9. Zonabluy
23
03:50.80
10. acl68
54
03:59.59
11. RelaxedCockatoo
66
05:10.84
12. Ariadna
26
06:09.51
13. chalkapple
25
10:22:23.42
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This Week
1. AnonyMinor
58
03:03.70
2. Wuni14 03:11.89
3. NaluXV1 03:32.32
4. RelaxedCockatoo
66
05:10.84
5. chalkapple
25
10:22:23.42
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Today
1. AnonyMinor
58
03:03.70
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MO3
1. Deglis
53
01:25.46
2. numbrr
300
01:26.03
3. Puzzler3
51
01:28.96
4. daanbe
216
01:29.21
5. ThePipeline
86
01:31.96
6. vowels
216
01:32.10
7. Frog The Toast
65
01:36.74
8. Noridice
130
01:36.89
9. JZE
86
01:40.54
10. ypw19
78
01:42.39
AO5
1. Deglis
53
01:28.05
2. daanbe
216
01:29.21
3. ThePipeline
86
01:31.97
4. Puzzler3
51
01:32.57
5. numbrr
300
01:33.06
6. vowels
216
01:34.22
7. Frog The Toast
65
01:37.60
8. Noridice
130
01:40.08
9. JZE
86
01:40.73
10. haramey
231
01:44.65
AO12
1. Deglis
53
01:29.76
2. daanbe
216
01:33.87
3. ThePipeline
86
01:34.35
4. vowels
216
01:36.10
5. Frog The Toast
65
01:41.58
6. JZE
86
01:45.44
7. Noridice
130
01:46.04
8. haramey
231
01:49.80
9. Make
274
01:51.62
10. numbrr
300
01:53.03
Robots / programmatic solversinfo  
1.windex42-robot
1
00:00.988
2.Paul Bismuth
1
00:39.531
3.angelinajeany07:35.279

* 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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2025-09-14 06:52:44

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