Tandy 1850 - Page 11

When you have set up or modified the position as required,
make sure the WHITE/BLACK lights correctly indicate the
side to move next and then press { set UP] to resume play
(the SET UP light will go out).
After you have set up a position always verify it as described
in section 12. Do not enter an illegal position as this may
yield unpredictable results.
Example: To set up a position with white King on E1, white
rook on Al, black king on D5, and black rook on B2, first
place the pieces on the board. Now press [ set up] and
NEW GAME] to clear the board. Press [coLor] (if
necessary) to turn the WHITE indicator on, Press © and
then press the white King on its square. Press [COLOR
{BLACK indicator on) and then the black King on its square.
Now press the and then the black Rook on its square.
Press [coLor |] (WHITE light on) and the white Rook on its
square. Press [SET UP] to return to play mode.
Note: In the above position the computer will permit castling.
If you press [PLAY] it will castle and capture the black rook
on the next move!
14. Problem mode
Your computer has a special problem mode (Level H) in which
it will solve chess problems up to mate in 10 moves. Press
[PLAy ] to start computing for checkmate. A corresponding
lamp will light to indicate the depth of computing. In this
mode the computer will only make a move if it can see a
forced
mate
in
10
moves
or
less.
Complicated
moves
may
take
hours/weeks.
Press|
PLAY
lto
stop
the
search
any
time
you
like.
If
the
computer
finds
a
forced
checkmate
it
will
play
the
first
move
—
the
“key
move"
~
which
will
lead
to
mate,
You
may
try
to
defend
the
position
for
the
opposite
side
(the
side
being
checkmated)
by
entering
moves
as
usual.
The
computer
will
continue
playing
the
checkmating
side
until
the
game
is
over.
If
the
computer
does
not
find
a
forced
mate
for
the
side
it
is
playing,
it
will
give
a
double
beep
and
make
no
move,
15. Display Moves
This ts a unique feature that allows you to observe the
“thought process” of the computer. To activate this mode
press AY MOVE ]. The computer will now show you
the moves it is considering while it computes a move, It will do
this
by
turning
on
the
FROM
square
for
three
seconds
and
then
the
TO
square
for
one
second.
You
can
watch
how
it
changes its mind as it computes deeper. Pressing
[DisPLAY MOVE] again switches off this feature
If you wish to interrupt the computer while it is computing a
move simply press [ pray This does not operate in the
problem mode.