Turing How to check if a object has moved in a certain area

[Robotkubo]

Hey, Been working on a school project, and I need it so if the red box moves inside the long blue box while you press 'P'
"You Win" is put on the screen, I'm just stuck. Please help

var x, y : int
x := 50
y := 200
var chars : array char of boolean
loop

drawfillbox (100, 50, 150, 250, blue)
Input.KeyDown (chars)

if chars (KEY_UP_ARROW) then
y := y + 5
end if
if chars (KEY_RIGHT_ARROW) then
x := x + 5
end if
if chars (KEY_LEFT_ARROW) then
x := x - 5
end if
if chars (KEY_DOWN_ARROW) then
y := y - 5
end if

drawfillbox (x, y, x + 20, y + 20, red)
delay (10)
cls


if x > 100 then
put "You win"
end if



if chars ('P') then
cls
delay (10)
put "You Win!"
delay (500)
end if


end loop

[Insectoid]

Look up collision detection. There are many tutorials on this site in the Turing Tutorials section.