Radio Shack 1850 Manuel utilisateur

60-2201

RADIOSHACK1850CHESS

17 LEVELPROGRAM

PLEASEREADBEFORE USING EQUIPMENT

Radio/haek

Introduction

Radio

Shack

1850isanuncomplicatedyetstate-of-the-art

chesscomputerwhichautomaticallyregistersyourmoveson

thebuilt-inchessboard.Itusesthe16lightsontheedgeofthe

boardtoindicateitsownmoves.Thiscomputeris

battery

operatedandcontainsa low-powermemory whichwillretain

thelastpositionofaninterruptedgameforupto18months.

To ensuremaximum enjoymentofyournewchesscomputer,

we recommend

that

youreadthisentiremanual,familiarizing

yourselfwithallofthecontrolsandoptions.Asyoubecome

morefamiliarwiththeoperation,youcanrefertothe

individualmanualsectionsforanswerstospecificquestions.

3-7

16171819

KEYS

ANDFUNCTIONS

Battery Compartment

—

Onbottom(seepage5)

ColorIndicators

—

Lightsto indicatewhichpiecesare

to bemoved.Whenitisthecomputersmove,the

appropriatecolor indicator blinksuntil computerhas

selecteditsmove.

3. SETUPIndicator- Lightswhenthechesscomputerisin

thesetup

mode,

(seepage9)

MULTI

MOVE Indicator

—

Lightswhenthechess

computerisinthemulti-move

mode,

(seepage9)

5. CHECK Indicator

—

Lightsto indicatethatyour

computer'sKingisin

Check,

(seepage8)

6. DRAW Indicator

—

Lightsincaseofastalemateor

draw,

(seepage8)

7. MATE Indicator- Lights(togetherwiththeCHECK

LED)to indicate

Checkmate,

(seepage8)

8. GamePieceButtons

—

Usetoselectgamepiecesinthe

set-upmodeortoverifypiece

position,

(seepage9)

9. COLORSelector

—

Usetoselectwhichcolorgame pieces

arebeingplacedintheset-upmodeorwhichcolorsetis

being

verified,

(seepage9)

10.

ONButton

—

Presstoactivatethechesscomputer;play

is resumedatthepointwherethe"MEMORY" button

was

pressed,

(seepage

)

11.

MEMORY Button

—

Presstoturnoffthechesscomputer;

thecurrentboardissavedin

memory,

(seepage

)

12.

SOUND Button- Presstoturnonandoffthesound.

Withsoundon,thecomputerwillbeeptoindicate

moves,

(seepage

)

13.

NEW

GAME Button- Presstoresettheboard

configurationtothebeginningofanew

game,

(seepage

14.

LEVEL Button- Usetoselecttheskilllevelofthechess

computer,

(seepage6)

15.

SETUPButton

—

Presstoplacethechesscomputerinthe

Set-up

Mode,

(seepage9)

16.

MULTIMOVE Button- Presstoplacethechess

computerintheMulti-Move

Mode,

(seepage9)

17.

DISPLAYMOVEButton- Presstoturnonoroffthe

DisplayMove

feature,

(seepage9)

18.

TAKEBACK Button- Presstotakebackprevious

moves,

(see

page

8 )

19.

PLAY Button

—

Pressto forcethechesscomputerto

immediatelymakeits

move,

(seepage7)

20.

SensoryChessboard

—

Eachsquarehasa sensorfor

indicatingpiecemovement.

21.

Movement Indicator

—

Lightstoindicatepiecesbeing

moved,

(seepage3)

ImportantNote

•Your RADIOSHACK

1850

SensoryChessGameis

programmedtoplaychesswithyou,nottoteachthegameto

you.

Wehaveincludedacopyoftherulesofchess,incaseyou

arenotfamiliarwiththegame.Ifyouneedadditional

information,yourlocal libraryhasseveralgoodbooksonthe

subject.

•Thecomputerisprogrammedwithavarietyofinstant

responsestoopeningmoves.Theseresponsesformthe

"Openingbook".Thecomputer

will,

however,calculate

responsesforanyunusualopeningmoves.

Gettingstarted

Slideoutthebatterycoverandinsert4 'Csizebatteriesas

showninFig.2.Press|

| andthen|

NEW

GAME|

.Ifthe

computerlocksup,duetostaticdischargeforsomeother

reason,

usea p in(orsharpobject)topressandhold

ACL

switch(locatedonthebottomlabel)for2secondstoreset.

Useof alkalinebatteries,whichwillprovideupto200hours

of playingtime,isrecommended.

2x "C"batteries

_/\

——v^\\

2x "C" batteries

/ I

L-

Fig.

Installbatteriesbyorder.

Settingthelevelofskill

YourRadioShack1850ChessComputerhas

different skill

levels.Thefirstninelevelsaredesignedforcasualplay.The

computerwillselectitsmovefortheselevelsbasedonthe

followingaverageresponsetimes:

LevelAverageresponsetimepermove

00.5second(HandicapLevelforbeginners)

12seconds(Defaultsetting)

25seconds

315seconds

430seconds

51minute

62minutes

73minutes

86minutes

Theactualresponsetimewillvarywitheachlevelandthe

complexityofthecurrent positions.

Thenextfourlevels

—

A,B,C andD

—

aretournamentlevels.

Theselevelsaretimecontrolgames,andare

classified

follows:

LevelPrimarytimecontrolSecondarytimecontrol

A30moves/1st30

min.

30moves/30minutes

B40moves/1st2 hours20moves/hour

C40

moves/1

21/2

moves/hour

D50moves/1st

1/2

hr20moves/hour

TakingLevelB asanexample,thecomputerwouldhaveto

finishitsfirst40moveswithin2 hours(2hourscomputer

time

—

not includingtimeforyourmoves),andthenmakethe

following20moveswithinonehour(computertime).The

remainingmovesinthegamewouldcontinuetobelimitedby

thesecondarytimecontrol.

NOTE:

AnytimeremainingonthePrimaryTimeControlis

carriedforwardtotheSecondaryTimeControl,soitis

possiblethatthesecondarytimecanbelongerthanindicated.

Forexample,inLevelB,ifthecomputerisfastenoughto

completeitsfirst40movesusingonly1hourofthinkingtime,

thenitwouldhavea totalof2 hoursthinkingtimeforthe

next20moves.Theremainingtimeforeachtime control

periodwillbeaccumulateduntiltheendofthegame.

LevelDescription

E5min/game

—

Thecomputerwilltrytocomplete a

gamein5 minutestime (totalcomputer thinking

time

—

playertimenotincluded).Thisissometimes

abbreviatedasa 'blitz'game.

F10

sec/move—

Thecomputerwillindicateitsmove

within10seconds.

G InfiniteLevel

—

Thecomputerwillsearchforabest

moveaslongaspossible(unlessitisinterruptedby

pressingthe'play' key).

verycomplicatedset-ups

it couldtakeseveraldaystomove.

HProblemSolvingLevel

—

SeeSection14ofthis

manualforacompletedescription.

Press

LEVEL

untilthelighted indicatorcorrespondstothe

levelyouwantornolightsareontoselectHandicapLevel0.

Pressing|

COLOR|

willincrementthelevelby8 stepsas a

short-cutinsettinghigherlevels.Thelevelsettingmaybe

changedatthebeginningoratanytimeduringagame.(But

onlywhenitisyourturntomove)

3. Makingmoves

To makea movepressdownonthepieceyouwishtomove,

thenplaceitonitsdestinationsquareandpressdownagain.

If youwish,youmayselecttoletthecomputermakethe

openingmove.Todothis,simplypress|

PLAY|

.The

computerwillmakeitsmove.Notethatwhenthecomputer

movesfirst,itwillhavethewhitepieces,sotheboardshould

be setupaccordingly.Whenyoumovefirst,thecomputerwill

havetheblacksetand

you

willhavewhite.

Whencapturing,keyinthecapturingpiecesmove.The

computerwill automaticallyremovethecapturedpiecefrom

theboardmemory.Whencastling,movetheKing'smovefirst,

thenthe Rook's.

Note:

Thecomputerisprogrammedto

allow

enpassant

captureswherethepawncancapturea piecebymoving

diagonallybehindit(refertotherulesofChessfora more

detailedexplanation).Whenitmakesanenpassantcapture,

thecomputerwill remindyoutoremovethecapturedpiece

by lightingthetwolightscorrespondingtoitsposition(press

thepiecedownbeforeremovingit).

4. Computermoves

Thecomputerwill indicateitsownmovesbysoundinga beep

andturningontwolightsonthesideofthechessboard.These

lightsindicatethehorizontalrankandverticalcolumnofthe

piecethecomputerwishestomove.Pressthepiecedownon

itssquare.Thecomputerwillnowshowyouwherethepiece

mustgo.Movethepiecetothesquareindicatedandpress

downtocompletethemove.

Note:

Whena pawnhasbeenadvancedtothelast rank;it

maybepromotedtobeanyotherpieceontheboard(except

King).

Firstadvancethepawntothelastrank,thenpressthe

key(tothe rightoftheplayingboard)correspondingtothe

pieceyouwishthepawntobecome.Thecomputerwillnot

begintomakeitsnextmoveuntilyouhaveselectedthe

piece.

Whenthecomputerpromotesa pawn,youwillhaveto

confirmitspiecetypebypressingthepiecekeysoneat a

timeuntilitacceptsthekey.

5. Illegalmoves

If youattempttomakeanillegalmovethecomputerwill

sounda doublebeep(high-low)andshowyouwherethepiece

youaretryingtomovecamefrom.Youmayplacethepiece

on a legalsquareorreplaceitontheoriginalsquareandmove

anotherpiece.

Youwillalsohearanerrorbeepifyoudonotexecute a

computermovecorrectlyorpressanimproperpanelkey.

6. Check,MateandDraw

When

the

computerputsyourking

check

the

CHECK light

willcomeon.

gam eends

checkmate,

the

MATE light

will

turned

onas

w e l l

(the

WHITE

BLACK lights

indicatewhichside

has

been checkmated).

case

ofa

stalemate

draw

threefold repetition

fifty

move rule,

the

DRAW lightwill

turned

on.

New

Game

To start

a new

gamepress

NEW

GAME

when

itis

y o u rturn

to move.

New

gam edoes

not

affect

the

levelsetting.

MULTI

MOVE

| or|

DISPLAY MOVE|

havebeenpressed,they

should

resetprior

starting

a new

game.

8. TakeBack

When

itis

yo u rturn

move

youmay

takeback(erase)

the

lastcomputermove

and

you r previous move.

Todo

thispress

TAKEBACK

.The

computer

will

show

you

where

the

piecescamefrom

and

where

you

should replacethem.

The

Radio Shack

1850

cantakeback

upt o8

times.

Changingsides

you

wish

changesideswith

the

computer

youmaydoso

by pressing

PLAY

instead

makingyour move.

The

computerwillplay

the

nextmove

foryouandy o ucang oo n

playing

forthe

other side.

You

can

change sides

often

asy o u

likeduring

the

course

agame.

Youcan

even

press|

PLAY

after everymove

and

make

the

computerplay

entiregame against itself.

The

PLAY

]keyis

alsousefulwhen

you

needhelp

and

w a n t

the

computer

suggest

mov e

fory o u .

you

w a n t

begin

gamewith

the

black pieces,

setupt h e

boardwith

the

black pieces

atthe

bottom.Press

NEW

GAME]

and

PLAY

|. The

computerwillmake

the

firstmove

for

white,

playingdownfrom

thet o po fthe

board.

Note:

WhiteKing

iso n

square

and blackKing

iso n

square

D1.

10.

Interrupt

When

the

computer

computing

move

youmay

interrupt

by pressing

[

PLAY

| .

Thiswill cause

itto

stopcomputing

and

play

the

bestmove

hasfound

sofar.

11.

Multi

Move

The|

MULTIMOVE

|keyputsthecomputerintoa special

modethat allowsyouto enter openingsorto forcethe

computertoplayacertaincontinuation.Inthismodethe

computerwillnot beginto computea replywhena movehas

beenentered.Itwillonlykeeptrackofthe board positionand

makesurethatthemoves enteredare legal.To returnto

normalplayyoumust press|

MULTI MOVE|

asecondtime.

TheMultiMovemodeisalso usefulwhenyouareplaying a

gamewithafriend.Thecomputerwillactasa refereeand

eachsidecanalwaysaskitfor adviceby pressing|

PLAY

| .

TheMulti-MoveLED staysonwhencomputerisinthe

Multi-Move mode.

12.

Verifyingpieceposition

If you upsetthe piecesorfor other reasonsarenotsurethat

theboardpositioniscorrect,thecomputerwillshowyouthe

proper locationofeach piece.

Pressoneofthepiecekeys(tothe rightoftheplaying surface)

whenitisyourturnto move.Thecomputerwill lightup a

horizontalrankandonevertical columntoshowyouthe

positionofthe selected piece.Pressthesamepiecekey again

to seeif thereareanymore piecesofthatkindontheboard.

Whenthecomputer findsnomoreofthe piece selecteditwill

soundadoublebeepandreturntoplay mode.

Youmay verifythe piecepositionsfor eithersideby pressing

COLOR

I .Always checktheWHITE/BLACK lightswhen

youareverifyingaposition.Theywillshowwhichsideis

beingverified.

TheVerify functionmaybeusedatanytime;evenwhen

Radio Shack1850iscomputingamove.

Press

| PLAY]

again

afteryou haveverifythe piecesto continue computing a

move.

13.

Settingupa specialposition

SETUP

youwishtosetupa specialposition firstpress

TheSETUP lightwillbeturnedonandyoumaythen move,

add,

or remove piecesat

will.

thepositionyouwanttosetup containsonlyafew pieces,

press|

NEW GAME]

immediately after pressing|

S E T

UP| .

Thiswill clearthe boardofall pieces.

To setupor modifytheposition selecta color(by pressing

COLOR

)andthena piecekeyforthe pieceyouwishto

enter,move,or delete.

—Tomovethe piece,pressitdownonitscurrent square,

moveittoitsnew positionandpressitdown

again.

—To removethe piecesimplypressitdownonits current

squareandremoveitfromthe board.

—Toadda piecesimplypressthe piecedownonan empty

square.

Whenyouhavesetupor modifiedthe positionasrequired,

makesuretheWHITE/BLACK lightscorrectly indicatethe

sidetomovenextandthenpress| SETU P |to resumeplay

(theSETUPlightwillgoout).

Afteryou havesetupa position alwaysverifyitasdescribed

in section

12.

Donot enteran illegal positionasthismay

yield unpredictable results.

Example:Tosetupapositionwith whiteKingonE1,white

rookonA1,blackkingonD5,and blackrookonB2,first

placethe piecesonthe board.Nowpress[

SET

UP|and

NEW

GAMEI

to clearthe board.PressI

COLOR

I (if

necessary)toturnthe

WHITE

indicatoron.Press

<2?

and

thenpressthewhiteKingonitssquare.Press|

COLOR|

(BLACK indicatoron)andthenthe blackKingonits square.

Nowpressthe

andthenthe blackRookonits square.

PressI

COLOR

(WHITE lighton)andthewhiteRookonits

square.Press|

SETUP|

to returntoplay mode.

Note:

Inthe abovepositionthecomputerwill permit castling.

youpress|

PLAY

| itwill castleand capturethe blackrook

on thenext move!

14.

Problemmode

Your computerhasa special problemmode (LevelH)in which

it will solvechessproblemsuptomatein10moves.Press

PLAY

Ito startcomputingfor checkmate.A corresponding

lampwill lightto indicatethedepthof computing.Inthis

modethecomputerwillonlymakea moveifitcansee a

forcedmatein

movesorless.Complicated movesmay

take hours/weeks.Press

PLAY

|tostopthe searchanytimeyou

like.

the computer findsa forcedcheckmateitwillplaythe first

move

—

the"key move"

—

whichwillleadto mate.Youmay

tryto defendthepositionfortheoppositeside(theside being

checkmated)by entering movesasusual.Thecomputerwill

continue playingthe checkmatingside untilthegameis over.

the computerdoesnotfindaforcedmateforthesideitis

playing,

itwillgivea doublebeepandmakeno move.

15.

DisplayMoves

Thisisa unique featurethat allowsyouto observethe

"thought process"ofthecomputer.To activatethismode

press|

DISPLAYMOVE

|. Thecomputerwillnowshowyou

the movesitisconsidering whileit computesa move.Itwilldo

thisbyturningontheFROM squarefor three secondsand

thentheTO squareforone second.Youcanwatchhowit

changesitsmindasitcomputes deeper.Pressing

DISPLAY MOVE[

again switchesoffthis feature.

youwishto interruptthecomputer whileitiscomputing a

movesimplypress|

PLAY

.Thisdoesnot operateinthe

problem mode.

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