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. Sujathar 00:37.14
2. berloonybaboony
73
00:46.41
3. nigh7sh4de 00:48.51
4. hanyan2013 00:55.72
5. numbrr
303
01:00.97
6. shingenx 01:11.89
7. Dorice
256
01:12.71
8. 110phil
110
01:16.92
9. chenh 01:17.94
10. Hachiman 01:21.05
11. resolve
22
01:21.75
12. Zygo6089 01:23.96
13. PhilDiggety 01:33.71
14. Rickieman86 01:36.86
15. WoenzelaarN
149
01:37.33
16. Geagle
87
01:41.31
17. Ernie A.
95
01:42.08
18. GirlSailor
27
02:02.73
19. MarcoOlic 02:04.65
20. arod97
41
02:06.65
This Week
1. Sujathar 00:44.60
2. hanyan2013 00:55.72
3. numbrr
303
01:00.97
4. Hachiman 01:21.05
5. Geagle
87
01:41.31
6. GirlSailor
27
02:02.73
7. arod97
41
02:06.65
8. crobertson2017 02:24.32
9. nigh7sh4de 02:26.05
10. 北笙
52
03:03.99
11. Uri Gotman
55
10:16.77
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Today
1. Sujathar 00:44.60
2. Geagle
87
04:56.55
3.--- empty -----:--
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
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MO3
1. Ludaye
72
00:22.82
2. Dymond
211
00:26.26
3. Douglas Shamlin Jr.
715
00:31.21
4. Nirneth
69
00:32.26
5. NoLifeChu
42
00:32.63
6. Preston10
100
00:34.41
7. numbrr
303
00:36.25
7. Vezzick
175
00:36.25
9. zdz
90
00:39.02
10. OneHero
258
00:39.37
AO5
1. Ludaye
72
00:23.59
2. Dymond
211
00:29.36
3. Douglas Shamlin Jr.
715
00:31.87
4. NoLifeChu
42
00:32.69
5. Nirneth
69
00:36.30
6. Preston10
100
00:36.36
7. OneHero
258
00:39.57
8. zdz
90
00:43.30
9. Vezzick
175
00:43.70
10. Chen Wang
109
00:44.49
AO12
1. Ludaye
72
00:24.46
2. Dymond
211
00:32.78
3. NoLifeChu
42
00:34.40
4. Preston10
100
00:39.80
5. Douglas Shamlin Jr.
715
00:41.50
6. OneHero
258
00:44.80
7. Chen Wang
109
00:49.40
8. vowels
216
00:51.49
9. numbrr
303
00:52.21
10. zzx
213
00:54.42
Robots / programmatic solversinfo  
1.tlstyer
136
00:00.007
2.cheyette00:00.158
3.4s4f400:00.252

* 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 14:47:36

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