Pentomino5x4Solver1

Press the Green Flag to activate pentominoes display of a 5x4 rectangle on a three second delay between tilings. 

The input is from the very exhaustive and beautiful pentomino tilings at   isomerdesign.com

In this instance the 5x4 - https://isomerdesign.com/Pentomino/5x4/solutions.txt

All of the pentominoes except the "X" are able to be in a 5x4 tiling. I think that is is interesting.

This version is adding more features - 
1. Read in and display a manually solved 5x4 tilings composed in a csv file
2. Integer programming solver inspired by
"A new mathematical model for tiling finite regions of the plane with polyominoes."
https://www.researchgate.net/publication/359327440_A_new_mathematical_model_for_tiling_finite_regions_of_the_plane_with_polyominoes
3. Trial and error backtracking solver
4. Exact Cover Solver

Big picture - I hope to code functional modules that are interesting examples of SNAP! programming and or illuminate algorithms.  Audience is my STEM/Art kids MS-HS