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. banu2972banu 00:27.35
2. BobLobolaw1 00:29.92
3. Sujathar 00:38.62
4. k03ih01
41
00:59.53
5. Preston10
56
01:00.28
6. grimmgirlfandom
152
01:30.21
7. Dorice
242
03:16.85
8. yosiaki
87
03:45.27
9. Saakshi 08:45.29
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This Week
1. banu2972banu 00:30.28
2. BobLobolaw1 00:31.99
3. yosiaki
87
03:45.27
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Today
1. yosiaki
87
03:45.27
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MO3
1. Douglas Shamlin Jr.
693
00:16.25
2. Dymond
210
00:24.12
3. vowels
216
00:24.69
4. Vezzick
157
00:25.97
5. BrownJohnDoe
201
00:27.20
6. numbrr
297
00:27.33
7. Nick
217
00:29.29
8. Rhododendron
132
00:29.71
9. Autuno
112
00:29.95
10. qqwref
259
00:32.53
AO5
1. Douglas Shamlin Jr.
693
00:17.32
2. Vezzick
157
00:26.21
3. Dymond
210
00:27.17
4. numbrr
297
00:27.33
5. vowels
216
00:28.60
6. Rhododendron
132
00:31.19
7. Autuno
112
00:32.25
8. BrownJohnDoe
201
00:32.55
9. Nick
217
00:33.45
10. NoahR
270
00:35.53
AO12
1. Douglas Shamlin Jr.
693
00:18.90
2. Dymond
210
00:29.97
3. vowels
216
00:31.92
4. Vezzick
157
00:36.22
5. numbrr
297
00:39.51
6. Eskimosnake
104
00:40.73
7. Autuno
112
00:41.86
8. BrownJohnDoe
201
00:44.05
9. 7k enjoyer
194
00:44.71
10. qqwref
259
00:44.89
Robots / programmatic solversinfo  
1.tlstyer
121
00:00.006
2.cheyette00:00.132
3.BertinSylux98
34
00:00.343

* 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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2025-07-12 07:57:45

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