No. 600 - A regular polyomino , an hexomino (with all 35 pieces that can be constructed of 6 squares)
in a rectangular tray with a very small protuberance.
It's very peculiar these pieces won't fit in any rectangular surface (like 14 x 15 = 210).
Golomb proved this in a simple and understandable way in his book.
Only one puzzle of the serie is more difficult than this one.
Still Tenyo claims the existance of over 1.000.000.000 (!) different solutions!
I believe they stopped the computer at this point, the real number must be a factor higher.
Probably by far the highest number of solutions in de Beat The Computer series!
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With the next plan I found over 10.000.000 solutions myself.
The rectangles at the left can be rotated independantly and be swapped for each other as well.
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With this invention Gerard Traarbach found over 1.000.000.000 (!) computer solutions by hand.
The squares at the bottom can be rotated independantly and be swapped.
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Download
You can download my Hexomino solver (written in Delphi 6 for Windows) here.
The solver can show all solutions of any puzzle shape.
Free Hexomino solver
more 'Beat The Computer' puzzles
More about polyominos
Play this puzzle yourself