perplexus.info :: Games : Battleships

Battleships (Posted on 2005-07-24)

In a standard game of battleships, what is the minimum number of strikes you will need to make to guarantee hitting at least one boat?

Battleships is played on a 10x10 Grid,
You are allowed:-
1 Battle Ship (4x1)
2 Cruisers (3x1)
3 Destroyers (2x1) and
3 Submarines (1x1)

NOTE:-These rules are slightly different than those of the board game, I am using these so that all members can give the same answer.

Submitted by Juggler

Rating: 3.0000 (6 votes)

Solution: (Hide)

the answer is actually 24 strikes, arranged in a diagonally symetrical pattern.
put the first 4 strikes on the following positions A4, B3, C2 & D1. then just follow this pattern leaving no more than 3 spaces between strikes on each horizontal and vertical line.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-06-01 07:45:09
Too easy	Jack Lim	2006-03-02 08:43:26
re: No Subject	saprom	2005-12-21 22:36:40
No Subject	saprom	2005-12-21 22:26:52
24 HITS!!	utla	2005-12-08 00:08:03
No Subject	Morgan	2005-11-16 17:15:23
Using that technique	Gamer	2005-07-25 02:24:39
re: Density	Justin	2005-07-24 19:26:08
re: 82 HITS?? -- but ... Pardon??	brianjn	2005-07-24 14:09:13
82 HITS??	Briso	2005-07-24 11:20:52
Density	brianjn	2005-07-24 06:46:08
Alignment?	brianjn	2005-07-24 04:58:27
My technique	Justin	2005-07-24 03:46:37

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