import networkx as nx
import matplotlib.pyplot as plt
# board parameters
rows_n = 10
cols_n = 10
# piece parameters
ords = [1,2,3]
colors = [0,1,2]
confs = range(0,8)
# setup 2-D board of IDs
board = Board(rows_n,cols_n)
board.build_ids2()
#print board.board
# setup tiles
poly = Polyomino()
cands = []
id_i = 0
# loop through each set of n-ominoes
for ord_c in ords:
# get pieces
ominoes = poly.get_pieces(ord_c)
# loop through each n-omino
ominoes_n = len(ominoes)
