from PIL import Image, ImageDraw

im = Image.open("s.png")
draw = ImageDraw.Draw(im)

#draw.setfill()

im.load()
#print im.getpixel((1395+5,3335+5))
#im.putpixel((25,26),123)
#im.save("tmp.png")
#quit()

def checkbox(x, y):
    if ((im.getpixel((x,y))[0] + im.getpixel((x+3,y))[0] + im.getpixel((x,y+3))[0]) == 0) and im.getpixel((x-1,y))[0] == 190 and im.getpixel((x,y-1))[0] == 190:
        redraw(x,y)

def redraw(x,y):
    print str(x) + ":"+str(y)+"\n"

    own_color = im.getpixel((x+3,y+3))[0]

    draw.rectangle((x,y,x+11,y+11),fill=(190,190,190))
    draw.line((x,y+5,x+11,y+5),fill=0)

    if im.getpixel((x+5,y+13))[0] == 0: #down line
        draw.line((x+5,y+5,x+5,y+11),fill=0)
    else: #upper line
        draw.line((x+5,y,x+5,y+5),fill=0)

im.putpixel((x+5,y+5),own_color+25)  # 25 + own color of box


for x in range(1,im.size[0]-3):
    for y in range(1,im.size[1]-3):
        if im.getpixel((x,y))[0] == 0:
            checkbox(x,y)

im.save("tmp.png")