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	00:12.93
2.	OCMEROS	00:21.16
3.	Praktisix	00:24.90
4.	llmt9	00:27.89
5.	Fanoulette	00:31.88
6.	Scorer	00:32.72
7.	pz	00:34.20
8.	qobi	00:35.64
9.	jacek66	00:36.21
10.	Santiluch	00:37.41
11.	ambiorix	00:38.45
12.	Sawdust99	00:39.54
13.	xilli	00:45.46
14.	CaptainBen	00:49.44
15.	waggonra	00:50.41
16.	Enoz3	00:51.40
17.	Slaettaratindur	00:55.95
18.	DumbKojiShimizu	00:59.31
19.	trLBumm	00:59.60
20.	Solus	01:01.96

This Week
1.	Piroska9	00:12.93
2.	Praktisix	00:24.90
3.	Fanoulette	00:31.88
4.	OCMEROS	00:35.30
5.	qobi	00:35.64
6.	Scorer	00:39.02
7.	Sawdust99	00:39.54
8.	llmt9	00:39.71
9.	jacek66	00:49.20
10.	waggonra	00:50.41
11.	trLBumm	00:59.60
12.	DumbKojiShimizu	01:01.27
13.	AndreasZ	01:31.74
14.	--- empty ---	--:--
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Today
1.	OCMEROS	00:50.03
2.	llmt9	00:57.49
3.	trLBumm	00:59.60
4.	--- empty ---	--:--
5.	--- empty ---	--:--
6.	--- empty ---	--:--
7.	--- empty ---	--:--
8.	--- empty ---	--:--
9.	--- empty ---	--:--
10.	--- empty ---	--:--
11.	--- empty ---	--:--
12.	--- empty ---	--:--
13.	--- empty ---	--:--
14.	--- empty ---	--:--
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16.	--- empty ---	--:--
17.	--- empty ---	--:--
18.	--- empty ---	--:--
19.	--- empty ---	--:--
20.	--- empty ---	--:--

MO3
1.	numbrr	00:08.54
2.	mtanzer	00:09.89
3.	Puzzleist	00:12.59
4.	BingBongBob	00:13.29
5.	Make	00:14.17
6.	Vezzick	00:15.64
7.	Piroska9	00:16.07
8.	qqwref	00:16.91
9.	Ben65732	00:17.53
10.	selahsea	00:18.19

AO5
1.	numbrr	00:10.38
2.	mtanzer	00:11.18
3.	Puzzleist	00:13.12
4.	BingBongBob	00:13.65
5.	Piroska9	00:16.67
6.	Make	00:16.96
7.	Vezzick	00:19.06
8.	Ben65732	00:19.14
9.	qqwref	00:20.29
10.	selahsea	00:21.22

AO12
1.	mtanzer	00:13.48
2.	numbrr	00:13.75
3.	Puzzleist	00:15.06
4.	BingBongBob	00:17.70
5.	Ben65732	00:23.60
6.	selahsea	00:24.99
7.	qqwref	00:25.71
8.	beatrixwashere	00:25.92
9.	Vezzick	00:26.41
10.	SilverHawk	00:26.45

Robots / programmatic solvers		info
1.	tlstyer	00:00.006
2.	Paul Bismuth	00:03.074
3.	Pfana	00:57.919

* 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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2025-11-18 16:02:03

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