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- Xref: sparky sci.math:16957 rec.games.abstract:625
- Path: sparky!uunet!mcsun!sunic!dkuug!diku!torbenm
- From: torbenm@diku.dk (Torben AEgidius Mogensen)
- Newsgroups: sci.math,rec.games.abstract
- Subject: Re: Game of pentominos
- Message-ID: <1992Dec15.154734.23894@odin.diku.dk>
- Date: 15 Dec 92 15:47:34 GMT
- References: <martel.724342292@marvin>
- Sender: torbenm@thor.diku.dk
- Organization: Department of Computer Science, U of Copenhagen
- Lines: 16
-
- martel@marvin.mr.sintef.no (Paulo Martel) writes:
-
- >After several tries I gave up a combinatorial analysis of the game of
- >pentominos. Would someone point me to a reference, or briefly explain
- >how one could compute the total number of solutions for a grid of a
- >given size (6x10, 5x12, 4x15, 3x20).
-
- I saw a paper once that reported the number of solutions to each of
- these rectangle sizes. It used a heavily optimized machine code
- program to exhaustively search for all solutions. I remember that for
- the 3x20 case there are only two solutions barring reflections and
- rotations. These are quite easy to find by hand. The number of
- solutions for the 6x10 case was quite large, but I don't recall the
- number. I also don't recall the title or author of the paper.
-
- Torben Mogensen (torbenm@diku.dk)
-