0

```
from graphics import *
def patchdrawer():
win = GraphWin("Patch drawer", 100, 100)
for x in range(0, 5):
for y in range(1, 6):
p1 = Point(x * 20, (y - 1) * 20)
p2 = Point((x + 1) * 20, y * 20)
rectangle = Rectangle(p1, p2)
if (x + y) % 2 == 0:
rectangle.setFill("white")
else:
rectangle.setFill("red")
rectangle.draw(win)
for x in range(0, 10):
for y in range(0, 10):
centre = Point(((x + 1) * 10) - 5 , ((y + 1) * 10) - 5)
circle = Circle(centre, 5)
if x >= 2 and x < 4 and y >= 0 and y < 2:
circle.setFill("red")
elif x >= 6 and x < 8 and y >= 0 and y < 2:
circle.setFill("red")
elif x >= 0 and x < 2 and y >= 2 and y < 4:
circle.setFill("red")
elif x >= 4 and x < 6 and y >= 2 and y < 4:
circle.setFill("red")
elif x >= 8 and x < 10 and y >= 2 and y < 4:
circle.setFill("red")
elif x >= 2 and x < 4 and y >= 4 and y < 6:
circle.setFill("red")
elif x >= 6 and x < 8 and y >= 4 and y < 6:
circle.setFill("red")
elif x >= 0 and x < 2 and y >= 6 and y < 8:
circle.setFill("red")
elif x >= 4 and x < 6 and y >= 6 and y < 8:
circle.setFill("red")
elif x >= 8 and x < 10 and y >= 6 and y < 8:
circle.setFill("red")
elif x >= 2 and x < 4 and y >= 8 and y < 10:
circle.setFill("red")
elif x >= 6 and x < 8 and y >= 8 and y < 10:
circle.setFill("red")
else:
circle.setFill("white")
circle.draw(win)
win.getMouse()
win.close()
win.getMouse()
win.close()
```