Excalibur electronic 974 Manuel d'utilisation

Page 4

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Your mission is to find the master

move for each position. If you do not

play the master move, an error beep

will sound. The HINT key may be

pressed to see the master move.

Electronic Chess will remember the last

problem number you worked on for

each of the five options. Before select-

ing a problem, first set the level to 72,

so that you have a good opponent if you

play on after the correct move.

MATE1

: Select one of 66 mate-in-1

move problems.

MATE2

: Select one of 196 mate-in-2

moves problems.

MATE3

: Select one of 95 mate-in-3

moves problems.

MATE4

: Select one of 9 mate-in-4

moves problems.

PrOb

: Select one of 135 tactical

problem positions. You are generally

looking for moves that win material.

But in some cases you may have a los-

ing position and the master move is to

force a draw.

To access THE NEW YORK TIMES

problems from any screen, you can fol-

low this procedure:

1. Push the CLEAR/ON button
2. Press the NEXT/2ND key
3. Press NEW GAMES
4. Press the NEXT/2ND key again.
5. Press OPTIONS
The word OP En will appear on the

screen.

6. Repeatedly press OPTIONS until

MATE1 or one of the other options list-

ed on page 6 or 7 appears.

7. When the desired option is dis-

played, press the +1 key to access the

first problem in that group, or keep

pressing to see them all, one by one.

Options Before and During

the Game

HELP: When this option is

turned on, all legal moves for the

selected piece will be shown at one

time.

InFO: When turned on, this

option will display the score, depth

of search (number of moves

Electronic Chess is "thinking

ahead"), best move it is considering

playing, and clock times. These will

be displayed while the computer is

thinking at its higher levels.

TOtAL: Your Electronic Chess

normally shows the time taken for

each move. Turning this option ON

will instead show the total game

time.

CLrBr: Use this option to clear

the chess board for easier problem

setup. Pressing SETUP now will

enter setup mode with the chess

board cleared of all pieces except a

White king. You must also place a

Black king on the board to exit

setup mode.

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the unit back on. If it is not "think-

ing," Electronic Chess will auto-

matically turn off after a period of

time, saving your game position.

Use the ON key to resume the

game.

LEVEL KEY

Use this key to view the current

level of play (for more information,

see “Levels of Play,” page 9).

Use the +1, -1, -10, and +10 keys to

change the level number. Also use

the LEVEL key to enter level

option mode.

How to Change

Level Options

When the level is displayed,

pressing the OPTIONS key shows:

FAST: In this mode, Electronic

Chess uses a more selective search

for thinking. It may miss a tactical

move, but it can look more deeply

into the position. Press the +1 key

to turn FAST on or off. Or press the

OPTIONS key again to show:

rAnd: Allows the computer to

randomly choose between two good

moves so that you get to practice

and play against different respons-

es. Press the +1 key to turn random

on or off.

Press CLEAR when you are fin-

ished with the LEVEL key.

Secondary Key Functions

Below are the features available

to you through the secondary func-

tions. To access any of these fea-

tures, you first press the blue 2nd

key and then press the indicated

key, looking at the blue label
above

the key. You may press the

CLEAR key or the 2nd key to stop

using a secondary function.

OPTIONS KEY

Pressing the OPTIONS key

repeatedly will display all selec-

table options. To select or change

an option, use the -1 or the +1 key.

Options Before the Game

Starts

OPEn: Select one of 34 book

opening lines of play. (See page 6.)

GAME: Select one of 16 Great

Games. (See page 10.)

TrAIn: Select one of eight train-

ing positions. Positions with the

Black king in the middle give you

practice in checkmating the Black

king.

New York Times Problems

The next five options permit the

selection of one of The New York Times

problems taken from actual chess mas-

ter games.

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