Turtle Detection

[ChinaPlaneFlyer]

Hi! I'm a new member here on the forum. I was trying to make a turtle tag game and I was trying to find if the first turtle, p1, is touching the second turtle, p2. I tried to use the distance() function but it doesn't seem to work. Please help!

#variables
p1 = turtle.Turtle()
p2 = turtle.Turtle()
game = turtle.Turtle()
s = turtle.Screen()
turn = 0
won = 0
gameconsole = True

#turtle setup
p1.penup()
p2.penup()
game.penup()
game.hideturtle()
p1.color("blue")
p2.color("red")

#game setup not finished yet
game.goto(0, 200)
if turn == 0 and won == 0:
    print("Blue is the tagger, Red is the runner.")
elif turn == 1 and won == 0:
    print("Red is the tagger, Blue is the runner.")


#p1 keyboard events
def p1_forward():
    p1.forward(20)

def p1_backward():
    p1.backward(20)

def p1_left():
    p1.left(90)

def p1_right():
    p1.right(90)

#p2 keyboard events
def p2_forward():
    p2.forward(20)

def p2_backward():
    p2.backward(20)
    
def p2_left():
    p2.left(90)

def p2_right():
    p2.right(90)

#p1 keyboard inputs
s.onkey(p1_forward, "w")
s.onkey(p1_backward, "s")
s.onkey(p1_left, "a")
s.onkey(p1_right, "d")

#p2 keyboard inputs
s.onkey(p2_forward, "Up")
s.onkey(p2_backward, "Down")
s.onkey(p2_left, "Left")
s.onkey(p2_right, "Right")

#keyboard execution
s.listen()
s.mainloop()

#p1 touch detection
while gameconsole == True:
    if p1.distance(p2) < 15:
        game.clear()
        print("Blue won!")