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.

Video Tutorial
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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

New Puzzle
This Month
1. BobLobolaw1 00:41.68
2. PuzzleMaestro
90
00:44.13
3. Sujathar 00:49.99
4. shingenx 00:51.54
5. chenh 00:57.23
6. jaripetteri
87
01:10.46
7. PhilDiggety 01:14.56
8. Geagle
96
01:20.69
9. AchimT 01:21.66
10. Arphurturtle
29
01:31.70
11. daghan
34
01:49.11
12. Dorice
265
01:50.23
13. Rickieman86 01:55.34
14. -Jason-
9
01:58.59
15. crobertson2017 02:03.87
16. yosiaki
106
02:49.55
17. Megerger 03:09.36
18. ihaveit 04:05.73
19. DdBbon 04:15.18
20. laries
39
04:18.50
This Week
1. BobLobolaw1 00:49.29
2. Sujathar 00:49.99
3. shingenx 00:59.59
4. chenh 01:09.30
5. PhilDiggety 01:14.56
6. AchimT 01:21.66
7. Arphurturtle
29
01:31.70
8. Dorice
265
01:50.23
9. Rickieman86 01:55.34
10. -Jason-
9
01:58.59
11. yosiaki
106
02:49.55
12. DdBbon 04:15.18
13. 574254418
2
08:09.32
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Today
1. AchimT 01:21.66
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MO3
1. Ludaye
72
00:22.82
2. Dymond
212
00:26.26
3. Douglas Shamlin Jr.
718
00:31.21
4. Nirneth
69
00:32.26
5. Preston10
106
00:32.62
6. NoLifeChu
48
00:32.63
7. triple
23
00:35.21
8. numbrr
310
00:36.25
8. Vezzick
181
00:36.25
10. zdz
94
00:39.02
AO5
1. Ludaye
72
00:23.59
2. Dymond
212
00:29.36
3. Douglas Shamlin Jr.
718
00:31.87
4. NoLifeChu
48
00:32.69
5. Preston10
106
00:33.25
6. Nirneth
69
00:36.30
7. triple
23
00:37.45
8. OneHero
267
00:39.36
9. zdz
94
00:43.30
10. Vezzick
181
00:43.70
AO12
1. Ludaye
72
00:24.46
2. Dymond
212
00:32.78
3. NoLifeChu
48
00:34.40
4. Preston10
106
00:39.80
5. triple
23
00:41.19
6. Douglas Shamlin Jr.
718
00:41.50
7. OneHero
267
00:44.80
8. Chen Wang
111
00:49.40
9. vowels
216
00:51.49
10. numbrr
310
00:52.21
Robots / programmatic solversinfo  
1.tlstyer
142
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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