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()

def red_coin(size):
    begin_fill()
    fillcolor('red')
    circle(size)
    end_fill()


def black_tile(size):
    "black tile first"
    repeat = [1, 2, 3, 4]
    for repeat in repeat:
        forward(size)
        right(90)


def black_row(times):    
    sizes = [50,50,50,50]
    for size in sizes:
        begin_fill()
        fillcolor('black')
        black_tile(size)
        end_fill()
        penup()
        forward(size * 2)
        pendown()

def game(times):
    penup()
    goto(-300, 200)
    pendown()
    board(400)

    "first row"
    black_row(1)
    flyto(-300, 150)
    forward(50)

    "second row - white tile first"
    black_row(1)
    flyto(-300, 100)

    "third row - black tile first"
    black_row(1)
    flyto(-300, 50)
    forward(50)

    "fourth row - white tile first"
    black_row(1)
    flyto(-300, 0)

    "five row - black tile first"
    black_row(1)
    flyto(-300, -50)
    forward(50)

    "six row - white tile first"
    black_row(1)
    flyto(-300, -100)

    "seven row - black tile first"
    black_row(1)
    flyto(-300, -150)
    forward(50)

    "eight row - white tile first"
    sizes = [50,50,50,50]
    black_row(1)
    flyto(-300, -200)