Casio FP-200 - Catch the Chicken; Program Outline; Directions

CATCH THE CHICKEN
You try to catch a fat chicken for your dinner,
but he makes a desperate attempt to escape
from you. Now, you have to devise a good idea
to catch him. Whether you will be able to cat a
roasted chicken dinner or you will get hurt by a
counterattack from the chicken depends solely
on your brains.
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The chicken is poised in a rectangular fenced-in garden. The chicken, however, runs
around the garden when you go in to catch it. You can see that it should be hemmed in
so that it can find no retreat.
One thing should be remembered. The chicken has a sharp beak, and if you arc pecked
with the beak you will get hurt, so you must be careful when attempting to catch it.
The screen appears as shown in the diagram below. The@ inside the rectangle indicates
the chicken you are going to catch. You must enclose the chicken with blocks until it
can no longer move around. The game is finished when you place a block at the posi-
tion of the chicken (see diagram, below next page).
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y 2
3
4
5
6
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CHICKEN
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; 20,
The screen assumes the horizontal direction as the X-axis and the vertical direction as
the Y-axis. Thus, in the diagram above the position of the block is represented by
coordinates (x:,:9, y=l ). Now you wish to place another block at the position indicated
by the dotted lines. Key in 10 when the program asks "X=?-." Then key in 2 when
the program asks "Y=?-." This places the block in the desired position.
When you place a block, the chicken moves one position. If the position in which the
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