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
97
 00:01.99
2. Fjznbeinfnn 00:02.06
3. Jack Choi
8
 00:03.07
4. pagassa 00:03.16
5. 소정
10
 00:03.20
6. jaripetteri
86
 00:03.43
7. 洪介興
13
 00:03.69
8. dtyamada
107
 00:03.79
9. prinsed
33
 00:03.88
10. AshFlora
71
 00:04.22
11. Dorice
253
 00:04.54
12. WIKENSDIKS 00:05.41
13. Ernie A.
93
 00:05.63
14. Melkor
76
 00:05.68
15. Santiluch
1
 00:06.08
16. daspore 00:06.58
17. lyr1s
17
 00:06.89
18. onlinecreature
6
 00:07.26
19. Partimento
44
 00:07.88
20. takerusan
13
 00:08.60
This Week
1. Preston10
97
 00:01.99
2. Fjznbeinfnn 00:02.06
3. 洪介興
13
 00:03.69
4. jaripetteri
86
 00:03.92
5. AshFlora
71
 00:04.22
6. WIKENSDIKS 00:05.41
7. Ernie A.
93
 00:05.63
8. danpuzzler 00:11.09
9. Lila22 00:18.29
10. CornSnaky
10
 00:36.79
11. thrasymachus
46
 00:58.86
12. JaneyGuo 01:51.59
13. wzh
7
 02:06.99
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Today
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MO3
1. Douglas Shamlin Jr.
714
 00:01.39
2. vowels
216
 00:01.64
3. Vezzick
172
 00:01.85
4. boru
113
 00:01.86
5. numbrr
301
 00:02.13
6. Nick
217
 00:02.15
7. 7k enjoyer
199
 00:02.17
7. qqwref
261
 00:02.17
9. BrownJohnDoe
201
 00:02.19
10. jaybrainer
242
 00:02.21
AO5
1. Douglas Shamlin Jr.
714
 00:01.55
2. vowels
216
 00:01.56
3. Vezzick
172
 00:01.81
4. miki2003pl
60
 00:02.22
5. Nick
217
 00:02.25
6. boru
113
 00:02.28
7. BrownJohnDoe
201
 00:02.30
8. qqwref
261
 00:02.32
9. numbrr
301
 00:02.37
10. Emil1233
48
 00:02.41
AO12
1. Douglas Shamlin Jr.
714
 00:01.78
2. vowels
216
 00:01.91
3. Vezzick
172
 00:02.36
4. boru
113
 00:02.53
5. Nick
217
 00:02.61
6. BrownJohnDoe
201
 00:02.63
7. numbrr
301
 00:02.73
8. qqwref
261
 00:02.75
9. miki2003pl
60
 00:02.78
10. Ben65732
130
 00:02.80
Robots / programmatic solversinfo  
1.tlstyer
135
00:00.006
2.cheyette00:00.105
3.4s4f400:00.225

* 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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2025-11-05 07:03:59

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