If you tried to buy the plastic 'beat the computer' puzzles, but you didn't succeed ... don't worry!
You can play most of them (and more) right now on your screen.
Even no. 0 with the round pieces, see screenshots. Steven A perfectly succeeded to program them in unix.
Rotate a piece with your right mouse button, flip it with your space bar.
Lovely, nearly as nice as the plastic pieces!
Linux users shouldn't have a problem to unpack and run it.
Windows users need some tools:
Firstly you'll need 'tar' to unpack, possibly the newer Winzips support this.
To run you'll need a shell (tcl), you might download it here.
Rename polypuzzle to polypuzzle.tcl and dubbelclick on it.
More about Beat The Computer puzzles
More about Polyominos