# drawing.py
# ----------
# By ____(you)___________
#
# (Briefly describe what this program does.)

from turtle import *


def board(side_length):
    "Out line of the board"
    sides = [side_length, side_length, side_length, side_length]
    for sides in sides:
        pensize(4)
        forward(sides)
        right(90)

def blue_coin(size):
    begin_fill()
    fillcolor('blue')
    circle(size)
    end_fill()


penup()
goto(-300, 200)
pendown()
board(400)
  
"first row"
def black_row(size):
    "black tile first"
    repeat = [1, 2, 3, 4]
    for repeat in repeat:
        forward(size)
        right(90)

sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
    pendown()
right(90)
forward(50)
right(90)
forward(400)
left(180)
forward(50)

"second row - white tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
right(90)
forward(50)
right(90)
forward(50)
pendown()
forward(400)
left(180)

"third row - black tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
    pendown()
right(90)
forward(50)
right(90)
forward(400)
left(180)
forward(50)


"fourth row - white tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
right(90)
forward(50)
right(90)
forward(50)
pendown()
forward(400)
left(180)

"five row - black tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
    pendown()
right(90)
forward(50)
right(90)
forward(400)
left(180)
forward(50)


"six row - white tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
right(90)
forward(50)
right(90)
forward(50)
pendown()
forward(400)
left(180)


"seven row - black tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
    pendown()
right(90)
forward(50)
right(90)
forward(400)
left(180)
forward(50)


"eight row - white tile first"
sizes = [50,50,50,50]
for size in sizes:
    begin_fill()
    fillcolor('black')
    black_row(size)
    end_fill()
    penup()
    forward(size * 2)
right(90)
forward(50)
right(90)
forward(50)
pendown()
forward(400)
left(180)



forward(75)
blue_coin(25)
input()