My pentominoes project started in the 80s, when I manually tryed to found all the 2339 solutions of the 6x10 rectangle pentominoes.
I then developed an archiving method, which allowed a fast check, if a new solution was really a new one or if I already had found it earlier.
Load the program here
Aimo Niemi 23.9.2008

In 1986 I wrote my first computer program, which was able to find all the solutions of the puzzle. At that time the program was one of the first of it's kind. It was written to Amstrad CPC home computer and it was also published in the finnish magazine MikroBitti. A copy of this article can be found here.

Later I translated the program, using turbo basic, to PC and finally this latest version saw dayligth in the year 2006.

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