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.

Video Tutorial

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This Month
1.	Preston10	00:02.03
2.	EdenGameMaster	00:02.79
3.	Jack Choi	00:03.07
4.	pagassa	00:03.16
5.	jaripetteri	00:03.31
6.	prinsed	00:03.88
7.	Conceited_2	00:05.45
8.	Fjznbeinfnn	00:05.82
9.	bastim86	00:05.85
10.	Santiluch	00:06.08
11.	lyr1s	00:06.89
12.	Educated-cat	00:07.03
13.	onlinecreature	00:07.26
14.	Partimento	00:07.88
15.	NaluXV1	00:07.91
16.	takerusan	00:08.60
17.	burden42	00:09.57
18.	EmrHoca	00:09.69
19.	chube	00:10.42
20.	Sloiw	00:10.43

This Week
1.	Jack Choi	00:03.07
2.	jaripetteri	00:03.43
3.	lyr1s	00:06.89
4.	EmrHoca	00:09.69
5.	chube	00:10.42
6.	ODINpower43210	00:11.67
7.	Phaeral	00:17.73
8.	Saotome	00:19.55
9.	Samuelflorr	00:21.51
10.	Loong	00:22.32
11.	2979712426	00:25.74
12.	kelseyyy77	00:42.92
13.	swimcade	24d 20:31:23.64
14.	--- empty ---	--:--
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Today
1.	Jack Choi	00:03.14
2.	--- empty ---	--:--
3.	--- empty ---	--:--
4.	--- empty ---	--:--
5.	--- empty ---	--:--
6.	--- empty ---	--:--
7.	--- empty ---	--:--
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14.	--- empty ---	--:--
15.	--- empty ---	--:--
16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

MO3
1.	Douglas Shamlin Jr.	00:01.39
2.	vowels	00:01.64
3.	Vezzick	00:01.85
4.	boru	00:01.86
5.	numbrr	00:02.13
6.	Nick	00:02.15
7.	7k enjoyer	00:02.17
7.	qqwref	00:02.17
9.	BrownJohnDoe	00:02.19
10.	jaybrainer	00:02.21

AO5
1.	Douglas Shamlin Jr.	00:01.55
2.	vowels	00:01.56
3.	Vezzick	00:01.81
4.	miki2003pl	00:02.22
5.	Nick	00:02.25
6.	boru	00:02.28
7.	BrownJohnDoe	00:02.30
8.	qqwref	00:02.32
9.	numbrr	00:02.37
10.	Emil1233	00:02.41

AO12
1.	Douglas Shamlin Jr.	00:01.78
2.	vowels	00:01.91
3.	Vezzick	00:02.36
4.	boru	00:02.53
5.	Nick	00:02.61
6.	BrownJohnDoe	00:02.63
7.	numbrr	00:02.73
8.	qqwref	00:02.75
9.	miki2003pl	00:02.78
10.	Ben65732	00:02.80

Robots / programmatic solvers		info
1.	tlstyer	00:00.006
2.	cheyette	00:00.105
3.	4s4f4	00:00.225

* 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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2025-10-20 06:23:36

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