import rhinoscriptsyntax as rs
import random as ran

#delete everything 
allobjs= rs.AllObjects()
rs.DeleteObjects(allobjs)

bsize = 10              #side length of box
dist = 1                #distance between boxes
offs = bsize + dist     #offset of boxes
num = 17                # number of boxes in one row

#create a box
corners = [(0,0,0), (bsize,0,0), (bsize,bsize,0), (0,bsize,0),
           (0,0,bsize), (bsize,0,bsize), (bsize,bsize,bsize), (0,bsize,bsize)]
rs.EnableRedraw(False) 

#Bedingungen
for i in range(num):
    for j in range(num):
        if ((i-j)%8) and ((i+j)%8):
           box = rs.AddBox(corners)
           rs.MoveObjects(box, (i*offs,j*offs,0))
           #color
           rs.ObjectColor(box, (i*(100/num),0,50))

rs.EnableRedraw(True)