CRICKET
by ? Keresley
from Sinclair User 19 (October 1983)

Players are shown on the pitch. Bowl by entering  7 and bat with keys 5
and 8. You can be bowled or caught out, although a butter-fingered
fielder may drop the ball. Written for the 16K ZX-81 by Keresley,
Coventry.


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MYSTERY CALCULATOR (ZX-81)
by Carl Johanson
from Sinclair User 19 (October 1983)

Watch your 16K ZX-81 perform a party trick, courtesy of Carl Johanson of
Park North, Swindon. Select any number between 1 and 63. The computer will
then show you six cards with numbers on them. Press Y if your number is on
a card, N if not. When you have seen and responded to all six cards the
computer will tell you the number of which you thought originally.


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TURPIN
by Angus Appleby
from Sinclair User 19 (October 1983)

Move around the white streams on the screen by using the usual cursor
keys. Collect a terrapin (inverse O) and take it to home at the top left
of the screen. Can you avoid both the moving crocodile and the rogue
terrapins, both of which will kill you? Written for the 16K ZX-81 by
Angus Appleby of Arbroath, Angus.


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42 CHARACTERS
by Paul Martin
from Sinclair User 19 (October 1983)

Helpline in the July issue gave hints on how to write a routine which
would print 42 characters to a line. Paul Martin of Stockport has put
the ideas into practice in a program for the 16K Spectrum.

Enter the words to be printed in A$, call up the subroutine with GO SUB
9500, and enter GO SUB 9900 before starting if you have merged the
routine with a larger program.


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LAZER BARS (aka. Laser Attack)

The space invaders above you drop laser bars which you cannot pass. By
blasting the ground beneath them you weaken their foundation and can
then blast away the bottom of a bar. Once that has been done they can
be destroyed if you stand beneath them and fire upwards. You will
suffocate if a laser bar or the earth is directly above you. Move left
with 1, right with 0, down with 2 and up with M. Blast left with 3,
right with 8 and upwards with 9. Your aim is to survive for as long as
possible, gaining points by shooting invaders and laser bars.
  Written for the 16K Spectrum by Alexander McKehnie of Harpenden,
Hertfordshire.


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SKI SLOPE (ZX-81)
by R Wooberry
from Sinclair User 19 (October 1983)

YOUR skier moves steadily down the screen, moving left when 5 is pressed and
right when 8 is pressed. Trees are represented by T, and hitting them means
instant death. Posts are represented by 1 and bushes by graphic A. Hitting a
post or a bush means the loss of five points. You gain one point for each move
and the maximum number of points to he scored between Start and Finish is 56.
  Ski Slope was written by R Wooberry for the 1K ZX-81.


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ATTACK (ZX-81)
by David Hookham
from Sinclair User 19 (October 1983)

[not yet available]


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WORD SLIDE (ZX-81)
by Timothy Skinner
from Sinclair User 19 (October 1983)

Fifteen letters appear in a 4-by-4 box. By sliding one of the letters
adjoining the empty space into the space and repeating the process, try to
arrange the letters into alphabetical order. To move a letter press the
corresponding key.
  Word Slide was written by Timothy Skinner of Hoveton, Norfolk, for the
16K ZX-81.

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COMLOGS

Including this correction from the Dec'83 issue.
"Odd things in Comlogs
"Since sending you my program Comlogs, which you published in October,
"I have discovered some odd things which can happen after a number of
"repeats and rub-outs have been used.  They can be remedied by the
"following corrections:
"  Lines 450-530: substitute j$ for i$ throughout.
"  Line 444 should read:
" 444 IF ff THEN LET g$="  "+g$(m TO)
"  Line 962 should read:
" 962 IF ff THEN LET g$=g$(6 TO)
"David Bye, Saffron Walden, Essex

David Bye of Saffron Walden, Essex, has written a version of the
language LOGO for the 48K Spectrum. Commands should be entered as two
letters and then a positive or negative number. In the instructions
given the number is represented by an "n" in brackets.

Drawing commands:
rl (n)  draws right to left
rl (-n) draws left to right
ud (n)  draws vertically up
ud (-n) draws vertically down
du (n)  draws diagonally up & right
du (-n) draws diagonally up & left
dd (n)  draws diagonally down & right
dd (-n) draws diagonally down & left

Cursor commands:
ca (n)  moves cursor right
ca (-n) moves cursor left
cu (n)  moves cursor up
cu (-n) moves cursor down

Utility commands:
st      stops the program or a repeat
hm      homes the cursor
cs      clears the screen, retaining the stream
rs      resets
rp      enables repeat
ru      erases last command


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SHAPE DESIGN (aka. Utility Designer)

Marc Poulaud of York wrote Utility Designer for the 16K Spectrum,
allowing a user to design large three-dimensional objects. The objects
can have from three to 13 sides, or be round. Type in the horizontal
radii of the half cross-section, which go up automatically in 10-pixel
sections. After a pause a 3D representation of the object will be
drawn.


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