5 REM http://www.geocities.com/mmphosis/apple2/contest/2007/old-computer-challenge.html
 10  GR 
 20 POKE 49234,0 : rem fullscreen
 30  COLOR= 15
 40  FOR I = 0 TO 39
 50  VLIN 0,47 AT I
 60  NEXT 
 100  COLOR= 5
 110 S = 21
 120 W = S
 130 H = 27
 140 X =  INT ((40 - W) / 2)
 150 Y =  INT ((48 - H) / 2)
 160 D =  INT (W / 3)
 161 DX = D
 170 Y2 = Y + H
 180 X2 = X + W
 200  FOR I = 0 TO 3
 210  VLIN Y,Y2 AT X + I * D
 220  NEXT 
 240 D =  INT (H / 3)
 250  FOR I = 0 TO 3
 260  HLIN X,X2 AT Y + I * D
 270  NEXT 
 280 YH =  INT (D / 2)
 281 YM = Y + H - YH
 290 XH =  INT (DX / 2)
 300  COLOR= 0
 310  FOR I = 0 TO 2
 320 YY = YM
 330 XX = X + XH + I * DX
 340  GOSUB 500
 350  NEXT 
 400 YY = YY - D
 410  GOSUB 500
 420 YY = YY - D
 430 XX = XX - DX
 440  GOSUB 500
 450 K =  PEEK ( - 16384)
 460  IF K < 128 THEN 450
 470 K =  PEEK ( - 16368)
 480  TEXT : HOME 
 490  END 
 500  VLIN YY + 1,YY - 2 AT XX
 510  VLIN YY + 1,YY - 2 AT XX + 1
 520  VLIN YY,YY - 1 AT XX - 1
 530  VLIN YY,YY - 1 AT XX + 2
 540  RETURN