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
85
 00:01.86
2. Kutner17
145
 00:02.48
3. Fragler 00:02.59
4. MoFan
119
 00:02.83
5. CeaselessWatcher
18
 00:03.13
6. jaripetteri
85
 00:03.97
7. absolbot#6708
13
 00:04.03
8. Rhododendron
140
 00:04.09
9. Oryn
155
 00:04.22
10. rtjhas
12
 00:04.29
11. dingeldrum
35
 00:04.41
12. sunleonid
17
 00:05.03
13. CroMa
66
 00:05.24
14. 云界
112
 00:05.75
15. takerusan
11
 00:07.12
16. Conceited_2
183
 00:07.13
17. 215zzq 00:07.63
18. 71448Eva
9
 00:07.66
19. bagels
4
 00:07.73
20. Rocketdog
27
 00:07.99
This Week
1. Preston10
85
 00:02.25
2. Kailo
43
 00:09.73
3. takerusan
11
 00:10.10
4. X-Jean
5
 00:11.42
5. AriCat
10
 00:13.56
6. tuskmanjones 00:14.18
7. Koakuma
49
 00:18.86
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Today
1. Kailo
43
 00:09.73
2.--- empty -----:--
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
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MO3
1. Douglas Shamlin Jr.
709
 00:01.39
2. vowels
216
 00:01.64
3. Vezzick
172
 00:01.85
4. boru
107
 00:01.86
5. numbrr
300
 00:02.13
6. Nick
217
 00:02.15
7. 7k enjoyer
197
 00:02.17
7. qqwref
260
 00:02.17
9. BrownJohnDoe
201
 00:02.19
10. jaybrainer
240
 00:02.21
AO5
1. Douglas Shamlin Jr.
709
 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
107
 00:02.28
7. BrownJohnDoe
201
 00:02.30
8. qqwref
260
 00:02.32
9. numbrr
300
 00:02.37
10. Emil1233
48
 00:02.41
AO12
1. Douglas Shamlin Jr.
709
 00:01.78
2. vowels
216
 00:01.91
3. Vezzick
172
 00:02.36
4. boru
107
 00:02.53
5. Nick
217
 00:02.61
6. BrownJohnDoe
201
 00:02.63
7. numbrr
300
 00:02.73
8. qqwref
260
 00:02.75
9. miki2003pl
60
 00:02.78
10. Ben65732
130
 00:02.80
Robots / programmatic solversinfo  
1.tlstyer
127
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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2025-09-16 18:08:54

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