polyomino_parity, a Python code which uses parity considerations to determine whether a given set of polyominoes can tile a specified region.
The computer code and data files made available on this web page are distributed under the GNU LGPL license.
polyomino_parity is available in a MATLAB version and an Octave versionand a Python version.
boundary_word, a Python code which describes the outline of an object on a grid of squares, using a string of symbols that represent the sequence of steps tracing out the boundary.
diophantine_nd, a Python code which is given a Diophantine equation in N variables, and returns all strictly positive solutions, or all nonnegative solutions.
pariomino, a Python code which considers pariominoes, which are polyominoes with a checkerboard parity.
polyominoes, a Python code which defines, solves, and plots a variety of polyomino tiling problems, which are solved by a direct algebraic approach involving the reduced row echelon form (RREF) of a specific matrix, instead of the more typical brute-force or backtracking methods.