Kakurasu

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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This Month
1.	Preston10	00:07.67
2.	piupiu	00:08.58
3.	EdenGameMaster	00:11.12
4.	jaripetteri	00:15.01
5.	Dorice	00:17.98
6.	Partimento	00:20.25
7.	shallwe	00:21.86
8.	MRP	00:27.88
9.	xxbh02jf	00:35.09
10.	xilli	00:36.13
11.	FunAcroFly	00:46.28
12.	anamilena	01:16.98
13.	Soham Bhosale	02:47.58
14.	marvertin	03:48.35
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This Week
1.	Preston10	00:07.67
2.	piupiu	00:08.58
3.	Dorice	00:26.42
4.	marvertin	03:48.35
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Today
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MO3
1.	Douglas Shamlin Jr.	00:06.33
2.	Vezzick	00:06.69
3.	BrownJohnDoe	00:06.78
4.	vowels	00:07.95
5.	numbrr	00:08.51
6.	Make	00:09.96
7.	Nick	00:10.72
8.	Preston10	00:10.83
9.	BingBongBob	00:11.12
10.	IceRune	00:11.16

AO5
1.	Vezzick	00:07.38
2.	Douglas Shamlin Jr.	00:07.51
3.	BrownJohnDoe	00:07.60
4.	vowels	00:09.59
5.	Make	00:10.32
6.	numbrr	00:10.41
7.	Nick	00:11.53
8.	beatrixwashere	00:11.91
9.	EdenGameMaster	00:12.03
10.	Preston10	00:12.38

AO12
1.	Douglas Shamlin Jr.	00:08.69
2.	BrownJohnDoe	00:11.44
3.	Vezzick	00:11.97
4.	Preston10	00:14.07
5.	vowels	00:14.13
6.	BingBongBob	00:14.35
7.	Dymond	00:15.42
8.	Nick	00:15.75
9.	missPear	00:16.29
10.	Make	00:16.33

Robots / programmatic solvers		info
1.	tlstyer	00:00.006
2.	cheyette	00:00.120
3.	BertinSylux98	00:00.280

* 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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2025-11-03 05:18:39

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