Kakurasu


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Kakurasu is a logic puzzle with simple rules and challenging solutions.

The rules are simple.Kakurasu is played on a rectangular grid with no standard size.
The goal is to make some of the cells black in such a way that:
1. The black cells on each row sum up to the number on the right.
2. The black cells on each column sum up to the number on the bottom.
3. If a black cell is first on its row/column its value is 1. If it is second its value is 2 etc.

Click a cell to make it black, right click to place an X.

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Kakurasu


4x4 Easy Kakurasu | 4x4 Hard Kakurasu | 5x5 Easy Kakurasu | 5x5 Hard Kakurasu | 6x6 Easy Kakurasu | 6x6 Hard Kakurasu | 7x7 Easy Kakurasu | 7x7 Hard Kakurasu | 8x8 Easy Kakurasu | 8x8 Hard Kakurasu | 9x9 Easy Kakurasu | 9x9 Hard Kakurasu

This Month
1. Preston10
100
00:12.66
2. Dorice
256
00:31.29
3. BobLobolaw1 00:32.17
4. berloonybaboony
73
00:36.27
5. Eduard 00:39.57
6. crobertson2017 00:39.91
7. 洪介興
47
00:53.95
8. k03ih01
49
01:04.48
9. BamBamNZ 01:06.16
10. 苏苏
49
01:54.94
11. Geagle
87
02:14.41
12. Axiomatically_confus...
21
02:18.29
13. WoenzelaarN
149
04:38.11
14. Shaohui
2
08:04.88
15. 北笙
52
24d 20:31:23.64
16.--- empty -----:--
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This Week
1. BobLobolaw1 00:36.11
2. 洪介興
47
00:53.95
3. Dorice
256
01:22.62
4. 苏苏
49
01:54.94
5. Geagle
87
02:14.41
6. Axiomatically_confus...
21
02:18.29
7. BamBamNZ 04:41.00
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9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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Today
1. 苏苏
49
01:54.94
2. BamBamNZ 04:41.00
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
715
00:13.84
2. Chen Wang
109
00:16.97
3. BrownJohnDoe
201
00:18.63
4. numbrr
302
00:19.75
5. Vezzick
175
00:20.86
6. Preston10
100
00:21.99
7. Dymond
211
00:23.40
8. Nick
217
00:25.02
9. vowels
216
00:26.05
10. Sylphie
143
00:26.92
AO5
1. Chen Wang
109
00:17.93
2. Douglas Shamlin Jr.
715
00:19.29
3. BrownJohnDoe
201
00:21.67
4. numbrr
302
00:22.71
5. Vezzick
175
00:23.40
6. Preston10
100
00:25.06
7. Dymond
211
00:25.31
8. Sylphie
143
00:27.90
9. vowels
216
00:29.79
10. summernight
225
00:30.35
AO12
1. Douglas Shamlin Jr.
715
00:21.21
2. Chen Wang
109
00:24.95
3. Preston10
100
00:29.01
4. Dymond
211
00:33.20
5. Nick
217
00:34.42
6. OneHero
258
00:35.41
7. Sylphie
143
00:37.78
8. Anas
141
00:38.49
9. Vezzick
175
00:38.87
10. 7k enjoyer
201
00:39.29
Robots / programmatic solversinfo  
1.tlstyer
136
00:00.006
2.cheyette00:00.119
3.BertinSylux98
34
00:00.308

* 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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2025-12-07 13:01:23

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