iterative code to make a March Madness-style bracket, runnable at http://www.calormen.com/jslogo/

mmadness.logo

TO mmadness :depth
  if :depth < 1 [forward 10 back 10 stop]
  forward :depth * 10 * 2
    right 90
    forward :depth * ( 10 * ( :depth / 5 ) )
      left 90
      mmadness :depth - 1
      right 90
    back :depth * ( 10 * ( :depth / 5 ) )
    left 180
    forward :depth * ( 10 * ( :depth / 5 ) )
      right 90
      mmadness :depth - 1
      left 90
    back :depth * ( 10 * ( :depth / 5 ) )
    right 90
    back :depth * 10 * 2
END
clearscreen
right 90
mmadness 5
left 180
mmadness 5
right 90