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
80
00:06.06
2. Rhododendron
137
00:09.09
3. Fragler 00:10.75
4. Dorice
246
00:16.31
5. JTanzer 00:32.69
6. kriz
43
00:35.31
7. dingeldrum
34
00:38.92
8. tobymgk
15
00:46.23
9. Efran
48
00:47.36
10. Francesco Caputo
20
00:51.07
11. RobitussinFlow
25
01:26.60
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
This Week
1. Rhododendron
137
00:09.09
2. Dorice
246
00:16.31
3. Efran
48
00:47.36
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. Dorice
246
00:43.89
2. Efran
48
00:47.36
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1. Douglas Shamlin Jr.
704
00:05.90
2. BrownJohnDoe
201
00:06.33
3. Vezzick
166
00:07.15
4. Dymond
210
00:09.27
5. numbrr
300
00:09.35
6. Nick
217
00:09.52
7. vowels
216
00:09.58
8. Juice
114
00:09.67
9. Eskimosnake
108
00:09.77
10. NooM
280
00:10.27
AO5
1. Douglas Shamlin Jr.
704
00:05.89
2. BrownJohnDoe
201
00:06.73
3. Vezzick
166
00:08.47
4. numbrr
300
00:09.59
5. vowels
216
00:10.00
6. Dymond
210
00:10.13
7. Nick
217
00:10.25
8. Juice
114
00:10.45
9. Eskimosnake
108
00:11.09
10. qqwref
260
00:11.45
AO12
1. Douglas Shamlin Jr.
704
00:06.68
2. BrownJohnDoe
201
00:09.84
3. Vezzick
166
00:10.48
4. vowels
216
00:10.97
5. numbrr
300
00:11.29
6. Dymond
210
00:11.42
7. Nick
217
00:11.59
8. Eskimosnake
108
00:12.01
9. Juice
114
00:13.54
10. BingBongBob
108
00:13.87
Robots / programmatic solversinfo  
1.tlstyer
126
00:00.006
2.cheyette00:00.122
3.BertinSylux98
34
00:00.277

* 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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2025-08-29 21:59:32

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