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
104
 00:01.74
2. a21737074481
166
 00:01.96
3. Kutner17
152
 00:02.06
4. thall
59
 00:02.13
5. Truth-or-Peace
131
 00:02.89
6. prinsed
34
 00:03.23
7. MushroomsCavern
52
 00:03.29
8. WIKENSDIKS 00:03.59
9. Fave Fang
88
 00:03.93
10. Emzed
60
 00:03.98
11. 云界
120
 00:04.44
12. SophieK
51
 00:04.63
13. Maxyy
4
 00:04.78
14. Megerger 00:04.89
15. piscescribb
54
 00:04.93
16. Educated-cat
50
 00:05.34
17. shuaixingren123 00:05.35
18. PuzzleMaestro
86
 00:05.84
19. DoubleA
66
 00:06.00
20. JudithL
10
 00:06.08
This Week
1. Preston10
104
 00:01.74
2. thall
59
 00:02.28
3. MushroomsCavern
52
 00:03.29
4. WIKENSDIKS 00:03.59
5. prinsed
34
 00:03.73
6. SophieK
51
 00:04.63
7. Maxyy
4
 00:04.78
8. piscescribb
54
 00:04.93
9. shuaixingren123 00:05.35
10. PuzzleMaestro
86
 00:05.84
11. JudithL
10
 00:06.08
12. Scr33n 00:07.37
13. chenrui
12
 00:09.91
14. determinedcrow
5
 00:10.46
15. rhyde27
10
 00:10.94
16. alexPlux
97
 00:12.04
17. amay1030 00:12.14
18. Koakuma
52
 00:14.91
19. Bropro29
22
 00:18.39
20. Damon
10
 00:24.57
Today
1. WIKENSDIKS 00:03.59
2. rhyde27
10
 00:10.94
3. Damon
10
 00:24.57
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.
717
 00:01.39
2. vowels
216
 00:01.64
3. Vezzick
180
 00:01.85
4. boru
123
 00:01.86
5. Preston10
104
 00:02.07
6. numbrr
307
 00:02.13
7. jaybrainer
251
 00:02.15
7. Nick
217
 00:02.15
9. 7k enjoyer
202
 00:02.17
9. qqwref
266
 00:02.17
AO5
1. Douglas Shamlin Jr.
717
 00:01.55
2. vowels
216
 00:01.56
3. Vezzick
180
 00:01.81
4. miki2003pl
60
 00:02.22
5. Nick
217
 00:02.25
6. boru
123
 00:02.28
7. BrownJohnDoe
201
 00:02.30
8. qqwref
266
 00:02.32
9. Preston10
104
 00:02.33
10. numbrr
307
 00:02.37
AO12
1. Douglas Shamlin Jr.
717
 00:01.78
2. vowels
216
 00:01.91
3. Vezzick
180
 00:02.36
4. boru
123
 00:02.53
5. Nick
217
 00:02.61
6. BrownJohnDoe
201
 00:02.63
7. Preston10
104
 00:02.69
8. numbrr
307
 00:02.73
9. qqwref
266
 00:02.75
10. miki2003pl
60
 00:02.78
Robots / programmatic solversinfo  
1.tlstyer
140
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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2026-02-17 15:05:11

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