### Thread: Some turtle graphics....

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#### Some turtle graphics....

hey guys, so i wrote the following code to draw a checkers board starting from the bottom left corner, with a white square:

Code:
```import turtle

def drawBoard(b):

w = 40
h = w
turtle.up()
turtle.goto((-1*(len(b)*w)), (-1*(len(b) *w)))
turtle.setheading(90)
turtle.down()
for k in range(4):
turtle.forward(len(b)*w)
turtle.right(90)

for i in range(1, len(b)*2, 2):
turtle.fillcolor(["black"])
turtle.begin_fill()
for j in range(4):
turtle.forward(w)
turtle.right(90)
turtle.forward(w)
turtle.end_fill()```
im not entirely sure what went wrong, it stopped drawing up till the part where it should start coloring, any pointers would be great, thanks!
2. The fill color shouldn't have been a list.
Code:
```import turtle

def rectangle_at(x, y, edge_1, edge_2 = None, fill = None):
'''moves the turtle to x, y with heading unchanged'''
d1 = edge_1
if edge_2 is None:
d2 = d1
turtle.up()
turtle.goto(x, y)
if fill is not None:
stack = [turtle.fillcolor()]
turtle.fillcolor(fill)
turtle.begin_fill()
turtle.down()
for k in 'ab':
turtle.forward(d1)
turtle.right(90)
turtle.forward(d2)
turtle.right(90)
if fill is not None:
turtle.end_fill()
turtle.fillcolor(stack.pop())

def odd(a):
return a & 1

def drawBoard(b):
w = 40
h = w
L = len(b)*w
turtle.setheading(90)
rectangle_at(-L, -L, L)
for i in range(len(b)):
x = i*w - L
for j in range(odd(i), len(b), 2):
rectangle_at(x, j*w-L, w, fill='black')```