#A checkerboard with randomly generated colors
from random import random
def random_check():
  p=makeEmptyPicture(900,900)
  for x in range(1,11):
    for y in range(1,11):
      c=makeColor(int(256*random()),int(256*random()),int(256*random()))
      addRectFilled(p,90*(x-1)+1,90*(y-1)+1,90,90,c)
  return(p)