Battleships

Battleships also known as Bimaru is a logic puzzle with simple rules and challenging solutions.

The rules of Battleships are simple:
You have to find the location of the battleships hidden in the grid. Some battleships may be partially revealed.
A battleship is a straight line of consecutive black cells.
The number of the battleships from each size is shown in the legend below the grid.
2 battleships cannot touch each other (even diagonally)
The numbers outside the grid show the number of cells occupied by battleships on that row/column.

Video Tutorial

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This Month
1.	Piroska9	00:25.57
2.	Praktisix	00:25.68
3.	boru	00:29.77
4.	dexter051	00:34.13
5.	czar519	00:34.74
6.	OCMEROS	00:35.68
7.	Conceited_2	00:35.89
8.	mjkjxp	00:42.47
9.	hammerhead20	00:44.78
10.	spikeydlux	00:45.02
11.	iamstupid	00:50.34
12.	Santiluch	00:50.48
13.	PDX2021	00:54.06
14.	TheBigMD	00:55.17
15.	Bega	00:55.56
16.	AstroNovalite	00:56.97
17.	jacek66	00:58.21
18.	lydiadeetz	00:58.37
19.	Wuni14	00:59.58
20.	Slaettaratindur	01:01.83

This Week
1.	Piroska9	00:25.57
2.	Praktisix	00:33.89
3.	dexter051	00:34.13
4.	Conceited_2	00:44.20
5.	mjkjxp	00:45.95
6.	OCMEROS	00:47.53
7.	Santiluch	00:50.48
8.	PDX2021	00:54.06
9.	AstroNovalite	00:56.97
10.	trLBumm	01:03.73
11.	jacek66	01:11.28
12.	DClam	01:13.92
13.	Lamiata	01:17.65
14.	hexe222	01:19.74
15.	Husball	01:20.15
16.	Saugust2	01:20.79
17.	Wageszera	01:26.39
18.	ambiorix	01:32.38
19.	secgin	01:40.20
20.	Filippo	01:42.69

Today
1.	Praktisix	00:36.33
2.	Conceited_2	00:48.88
3.	trLBumm	01:03.73
4.	Wageszera	01:44.46
5.	Filippo	01:55.06
6.	hexe222	02:12.27
7.	ambiorix	02:22.01
8.	chrispy	05:26.90
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.	numbrr	00:13.97
2.	mtanzer	00:14.84
3.	Puzzleist	00:18.09
4.	BingBongBob	00:20.80
5.	Ben65732	00:22.09
6.	Meep	00:22.43
7.	gtkrouwel	00:23.36
8.	beatrixwashere	00:23.73
9.	vowels	00:24.39
10.	Make	00:26.16

AO5
1.	numbrr	00:16.44
2.	mtanzer	00:17.36
3.	Puzzleist	00:20.55
4.	BingBongBob	00:21.57
5.	Ben65732	00:24.90
6.	gtkrouwel	00:25.98
7.	vowels	00:26.16
8.	Meep	00:26.33
9.	beatrixwashere	00:26.68
10.	Salzzz	00:28.84

AO12
1.	numbrr	00:20.79
2.	mtanzer	00:23.77
3.	Puzzleist	00:26.14
4.	BingBongBob	00:26.21
5.	gtkrouwel	00:28.69
6.	Ben65732	00:30.68
7.	beatrixwashere	00:31.75
8.	Salzzz	00:32.42
9.	SilverHawk	00:33.56
10.	Vezzick	00:33.70

Robots / programmatic solvers		info
1.	tlstyer	00:00.006
2.	Paul Bismuth	00:06.481
3.	DaniEdi81	01:10.502

* 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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2025-11-29 14:10:34

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