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. lpbxszpd
33
 00:02.15
2. RaiT
85
 00:02.43
3. Kukko
146
 00:02.58
4. Dorice
256
 00:02.67
5. nigh7sh4de 00:02.82
6. thall
53
 00:02.96
7. WIKENSDIKS 00:03.18
8. prinsed
33
 00:03.42
9. daspore 00:03.68
10. mrgmath
25
 00:03.93
11. yayrii
13
 00:04.04
12. nosenugget
136
 00:04.15
13. arod97
47
 00:04.22
14. PetitSouris
11
 00:04.30
15. jaripetteri
86
 00:04.38
16. 3kariMonka 00:04.52
17. si1verwind 00:04.55
18. Verigold
5
 00:04.73
19. tskitstki 00:04.93
20. Axiomatically_confus...
22
 00:04.96
This Week
1. nigh7sh4de 00:02.82
2. daspore 00:03.68
3. si1verwind 00:04.55
4. Verigold
5
 00:04.73
5. 云界
116
 00:05.09
6. 나인석
6
 00:06.63
7. Axiomatically_confus...
22
 00:07.41
8. Taco1717
40
 00:08.29
9. Santiluch
1
 00:10.52
10. Zixivyxity
13
 00:11.17
11. Canon
19
 00:12.93
12. Samuelflorr 00:17.09
13. 北笙
54
 00:21.57
14. TheRealSavikivi
6
 00:53.24
15. TheMisteriousP
52
 01:34.82
16. 鹿
4
 08:22.57
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1. 나인석
6
 00:06.63
2. Zixivyxity
13
 00:11.17
3. Samuelflorr 00:17.09
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.
715
 00:01.39
2. vowels
216
 00:01.64
3. Vezzick
175
 00:01.85
4. boru
115
 00:01.86
5. numbrr
303
 00:02.13
6. Nick
217
 00:02.15
7. 7k enjoyer
201
 00:02.17
7. qqwref
262
 00:02.17
9. BrownJohnDoe
201
 00:02.19
10. jaybrainer
245
 00:02.21
AO5
1. Douglas Shamlin Jr.
715
 00:01.55
2. vowels
216
 00:01.56
3. Vezzick
175
 00:01.81
4. miki2003pl
60
 00:02.22
5. Nick
217
 00:02.25
6. boru
115
 00:02.28
7. BrownJohnDoe
201
 00:02.30
8. qqwref
262
 00:02.32
9. numbrr
303
 00:02.37
10. Emil1233
48
 00:02.41
AO12
1. Douglas Shamlin Jr.
715
 00:01.78
2. vowels
216
 00:01.91
3. Vezzick
175
 00:02.36
4. boru
115
 00:02.53
5. Nick
217
 00:02.61
6. BrownJohnDoe
201
 00:02.63
7. numbrr
303
 00:02.73
8. qqwref
262
 00:02.75
9. miki2003pl
60
 00:02.78
10. Ben65732
130
 00:02.80
Robots / programmatic solversinfo  
1.tlstyer
136
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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2025-12-10 13:52:08

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