Excalibur 712 User manual

IVAN II
Operating Manual
Model 712
Congratulations on your purchase of
Excalibur Electronics’ IVAN! You’ve
purchased both your own personal chess
trainer and a partner who’s always ready
for a game—and who can improve as you
do! Talking and audio sounds add anoth-
er dimension to your IVAN computer for
increased enjoyment and play value.
Find the Pieces
Turn Ivan over carefully with his chess-
board facedown. Find the door marked
“PIECE COMPARTMENT DOOR”.
Open it and remove the chess pieces.
Replace the door and set the pieces aside
for now.
Install the Batteries
With Ivan facedown, find the door
marked “BATTERY DOOR’. Open it and
insert four (4) fresh, alkaline AA batteries
in the battery holder. Note the arrange-
ment of the batteries called for by the dia-
gram in the holder. Make sure that the
positive tip of each battery matches up
with the + sign in the battery compart-
ment so that polarity will be correct.
When the batteries are properly installed,
Ivan automatically turns himself on and
starts talking letting you know he's ready
for action. If Ivan does not start talking,
use a thin pointed object and press the
ACL button. Replace the battery com-
partment panel, and turn Ivan over.
Play a Game Right Away
After you have installed the batteries, the
display will show the chess board with all
the pieces on their starting squares. Place
the plastic chess pieces on their start
squares using the LCD screen as a guide.
The dot-matrix display will show
0101CHESSCHESS. This indicates you are at the
first move of the game and ready to play
chess.
Unless you instruct it otherwise, IVAN
gives you the White pieces—the ones at
the bottom of the board. White always
moves first. You’re ready to play!
Making your move
Besides deciding on a good move, you
have to move the piece in a way that Ivan
will recognize what's been played. Think
of communicating your move as a two-
step process--registering the FROM
square and then registering the TO
square.
Lift the piece or pawn you want to move.
Press the edge of the piece's base down
gently on the center of its FROM square.
Ivan will say and display the coordinates
of the FROM square-for example "E2."

2
Then press the edge of the piece down
gently on the square you want to move it
to-for example, "E4." Ivan will say the
TO square, confirming that he has regis-
tered your move. Place the piece gently
on its new square. (Some players like to
push the squares with their forefinger
while holding the piece in the rest of the
fingers of the same hand.)
Moving Ivan’s Piece
You'll notice that Ivan almost immediate-
ly displays his response to your move.
Ivan decides on his own move, of course,
and lets you know what it is on the dis-
play below the LCD board. For example,
if you play 1. E2-E4, he may respond E7-
E5. But you need to move the piece on
the board for him. Follow the same two-
step procedure you did while registering
your own move-gently pushing on the
FROM and TO squares. You're already
playing a game! Enjoy the contest.
Putting a game “on hold”
Any time it's your move and you wish to
stop playing for a while, just press the
OFF/SAVE key. IVAN will switch off
and go into a sleep mode. He will remem-
ber the last position, including the
elapsed time, as long as you do not inter-
rupt the power supply-for example, by
removing the batteries. To resume play,
just press the ON/CLEAR key.
Function Keys
and Special Features
NEW GAME KEY
Use this key to start a new game.
OFF/SAVE KEY
This key turns the unit off, automatically
saving a game in progress.
NOTE: If it is not "thinking," IVAN will
automatically turn off after a period of
time, saving your game position. Use the
ON key to resume the game.
ON/CLEAR KEY
If off, this key turns IVAN on. Also use
this key to exit any of the special modes
like OPTIONS, SETUP, and LEVEL.
This key may be used during move entry
to clear your FROM square.
o/nKEY (CONTRAST)
Press this key then the tor the ukey to
adjust the display contrast to one of six
settings. This allows you to compensate
for differences in lighting and viewing
position. Also use this key in SETUP
mode to change the color to move.
HINT KEY
Press this key if you want to get hints
from IVAN. It displays HinTHinTand flash-
es a recommended move on the screen.
If the hint is a book move or a replay
move, OPENOPEN or RPLAYRPLAY will be shown
instead of HINTHINT .
After pressing a FROM square,
press the FROM square again to
select a different FROM square.

3
TAKEBACK KEY
This key lets you take back a move or
moves you’ve decided against. Press this
key repeatedly to continue taking back
moves. After you take back a move, you
can use the MOVE key to replay the
taken-back move or moves.
MOVE KEY
When it is your move, press this key to
switch sides (colors) with IVAN. While
IVAN is thinking, press the MOVEkey to
force IVAN to stop thinking. Also use
MOVE to replay moves in the takeback
move mode (see "TAKEBACK,” above).
SETUP KEY
Press this key to set up special positions
(see page 9.) You can also use this key to
promote a pawn that reaches your oppo-
nent’s back rank to a piece other than a
queen. (The promotion to a queen is the
most common, so it is automatic.)
LEVEL KEY
Press this key to check the level of play .
Use the tor the ukey to change the
level. Repeatedly press the LEVEL key
to change the level type (for more infor-
mation, see “Levels of Play,” page 5).
MULTI-MOVE KEY
Press this key to toggle between
2PLAYR2PLAYR and 1PLAYR1PLAYR. While in 2
player mode the symbol “=” will be
diplayed. Use 2 player mode to play
another person, or to enter a favorite
opening (see page 7).
AUTO KEY
Press this key to toggle between
0PLAYR0PLAYR and 1PLAYR1PLAYR. While in 0
player mode the symbol “#” will be dis-
played. When in 0 player mode, have
IVAN finish a game for you automatical-
ly by pressing the MOVE key (also turn
TOUCHTOUCHoption on, see page 4). You may
press AUTO to stop auto play.
REPEAT KEY
If you didn’t see where IVAN moved, use
this key (before any other) to hear the
move announcement. Also this key usu-
ally repeats the last phrase said.
RATING KEY
IVAN rates your play! Use this key to
view your current rating. You must turn
the RATERATE Option On, and play a
Tournament or Sudden Death level to
have your rating change.
t/NO KEY
Use this key to decrease a setting or to
answer a question like “Are you SURE?”.
u/YES KEY
Use this key to increase a setting or to
answer a question like “Are you SURE?”.
OPTIONS KEY
Pressing the OPTIONS key displays the
last changed option. To select or change
an option, use thetor the ukey. To
view a different option, repeatedly press
the OPTIONS or the RATING key.
Options Before the Game Starts
OPENOPEN: Select one of 32 book opening
lines of play (See page 7.)
TRAINTRAIN: Select one of eight training
positions. Positions with the Black king
in the middle give you practice in check-
mating the Black king (See page 8.)
Options Before and During the Game
SCORESCORE: Your display normally shows
the number of the current move. If
instead you want to see the piece-score of

4
your current position, turn this option on.
The scoring totals the following values:
Pawns—1, Knights—3, Bishops—3,
Rooks—5, and Queen—9.
HELPHELP: When turned on, all legal moves
for the FROM square piece will be shown
at one time.
INFOINFO: When turned on, this option will
display the score, depth of search (num-
ber of moves IVAN is "thinking ahead"),
and best move it is considering playing.
These will be displayed while the com-
puter is thinking at its higher levels.
RATERATE: Turning this option ON will
enable your rating to be updated if you
select a tournament or a sudden death
type level to play against. Turn this
option off, when you want to practice on
those levels. During a rated game the ‘O’
symbol will appear as a reminder. When
the ‘O’ symbol is on, you will hear an
“ARE YOU SURE” warning if you try to
TAKEBACK mistakes, adding pieces in
Setup mode, ask for a Hint, or try to start
a NEW GAME before the game is com-
pleted. If the score is greater than 9.0, you
can claim a victory with the NEW
GAME key.
CLRBRCLRBR: Use this option to clear the
chess board for easier problem setup.
Pressing the SETUP key now, will enter
setup mode with the chess board cleared
of all pieces. You must place a White
king and a Black king on the board to exit
setup mode.
IVANIVAN: Use this option to turn most of
the speech off. Some warnings such as
Check and Are You Sure, will still be
heard however.
SNDEFSNDEF: Use this option to turn the
sound effects off.
ANNCANNC: Use this option to turn the move
announcements off.
COACHCOACH: Turn this option on to hear a
warning message if one of your pieces is
under attack. The threat warning ‘!’ will
be enabled when COACH option is On.
SOUNDSOUND: Use this option to turn the
sound ON or off.
SLEEPSLEEP: Adjust the automatic shut off
time with this option. Setting it to ‘00’
will disable auto shut-off altogether.
TOUCHTOUCH: Use this option to play without
the plastic pieces, viewing only the dis-
play. When you play with this option ON,
the display will show you IVAN's move,
signaling the FROM and TO squares sev-
eral times to make it clear, but you will
not have to register his move. In this
mode, the large playing board acts as a
touch screen so that you can input your
moves by pressing FROM and TO
squares with your finger.
SPEEDSPEED: Adjust the dot-matrix scroll
speed with this option. Setting it to ‘00’
will disable scrolling altogether.
Special Displays
Draw Messages
During the game, IVAN will display the
word DRAWDRAW if a three-time repetition of
position occurs, or if there has been no
pawn moved and no exchanges for 50
moves. When either of these situation
takes place, the rules of chess state that a
player can claim a draw. If you wish, you
can ignore the message and continue the
game. When a stalemate is reached, the
display will read STALESTALE.

5
Game-ending Messages
IVAN will announce mate in two
(MATE2MATE2) and mate in three (MATE3MATE3).
It will also display +MATE+MATE when exe-
cuting a checkmate or when you check-
mate IVAN. When you want to claim a
win, draw, or want to resign—press the
NEW GAME key.
Screen Symbols
When a ‘++’ appears on the screen, it is
a reminder that you are in check. When
an ‘O’ appears on the screen, the game
you are playing can be rated. When an ‘=’
appears, it indicates you are in two
human player mode. When an ‘#’
appears, it indicates you are in zero
human player mode. And lastly when an
‘!’ appears on the screen, you are being
warned that one of your pieces is threat-
ened with capture. (This is similar to the
friendly "en garde" warning sometimes
used by human players when they are
attacking an opponent’s queen.)
Special Situations
Starting Play with the Black Pieces
When you want to play the Black pieces
(to let IVAN move first) press the MOVE
key before you make your first move as
White. You’ll see the White and Black
pieces switch places immediately! If
you're using the playing board with the
plastic pieces, set the Black pieces up at
your end, close to the LCD.
Castling
Remember, you must always move the
King first when castling! First press your
king down on its FROM square (if
castling, E1). Then move and press your
king down on its TO square (if castling
kingside, G1). IVAN recognizes castling
maneuvers after the king is moved two
squares. He then reminds you to complete
castling by moving the rook. Move the
rook in the routine manner, pushing on its
FROM and TO squares normally.
Promoting Pawns
When your pawn reaches the other end of
the board, IVAN will automatically pro-
mote the pawn to a queen, since this is the
best choice in nearly every case. In the
unlikely event you want to promote your
pawn to a piece other than a queen, take-
back IVAN’s move, next use IVAN's SET
UP feature, then press MOVE.
When IVAN pushes a pawn to your back
row, it will always promote to a queen.
Remember to change the piece on the
board after either side promotes a pawn.
En Passent - taking a pawn in passing
For an en passant capture, press the
FROM and TO squares of the capturing
pawn. The square of the pawn being cap-
tured will then appear on the display. This
is to remind you to remove the captured
pawn. You must press down on the cap-
tured pawn before removing it from the
board.
Taking Back a Capture
After you take back a capture, the square
of the captured piece will then appear on
the display. This is to remind you to put
back the captured piece. You must press
on the square of the captured piece. Use
the LCD chessboard, to see what was
captured.
Levels of Play
IVAN has six level types. Two of the
level types (PLY and MATE) are for
analysis. The other four level types are

6
for play.
Press LEVEL to see the current level.
Press LEVEL repeatedly to change to a
different level type.
Press CLEAR to return to normal play.
Level types Beginner, Fixed, Sudden, and
Tournament can be adjusted for three dif-
ferent strengths. While viewing the level,
use the OPTIONS key to select 'E' for
Easy, 'A' for Average, and 'H' for Hard.
Beginner Level Type
Press the tor the ukey to select 1, 2, 3,
4, 5, 7, 10, or 15 seconds per move.
BE001 BE002 BE003 BE004
BE005 BE007 BE010 BE015
BA001 BA002 BA003 BA004
BA005 BA007 BA010 BA015
BH001 BH002 BH003 BH004
BH005 BH007 BH010 BH015
Fixed Time Level Type
Press the tor the ukey to select 1, 2, 3,
5, 10, 15, 20, 30, 45 seconds, and 1:00,
1:30, 2:00, 2:30, 3:00, 5:00 minutes per
move. Fixed Time Level "inf" is infinite
time, and IVAN will only stop thinking
when the MOVE key is pressed, or a
mate is found.
FE001 FE002 FE003 FE005
FE010 FE015 FE020 FE030
FE045 FE100 FE130 FE200
FE230 FE300 FE500 FEinF
FA001 FA002 FA003 FA005
FA010 FA015 FA020 FA030
FA045 FA100 FA130 FA200
FA230 FA300 FA500 FAinF
FH001 FH002 FH003 FH005
FH010 FH015 FH020 FH030
FH045 FH100 FH130 FH200
FH230 FH300 FH500 FHinF
Sudden Death Level Type
Press the tor the ukey to select the
amount of time in minutes for the entire
game. If you run out of time you lose or
forfeit, FORFTFORFT will be shown on the
display.
SE 05 SE 10 SE 15 SE 20
SE 30 SE 45 SE 60 SE 90
SA 05 SA 10 SA 15 SA 20
SA 30 SA 45 SA 60 SA 90
SH 05 SH 10 SH 15 SH 20
SH 30 SH 45 SH 60 SH 90
Tournament Level Type
Press the tor the ukey to select the the
amount of time in HOURS MINUTES
format to play the number of moves
shown on the left side of the display. If
you run out of time before you play the
indicated number of moves, you lose or
forfeit, FORFTFORFT will be shown on the
display.
40 TE030 45 TE045 40 TE100 40 TE130
35 TE130 45 TE155 40 TE200 45 TE225
40 TA030 45 TA045 40 TA100 40 TA130
35 TA130 45 TA155 40 TA200 45 TA225
40 TH030 45 TH045 40 TH100 40 TH130
35 TH130 45 TH155 40 TH200 45 TH225
Ply Level Type
Press the tor the ukey to select the
depth of search from 1 to 8 ply. A ply is
one half move.
PLY 1 PLY 2 PLY 3 PLY 4
PLY 5 PLY 6 PLY 7 PLY 8
MAtE Solver Level Type
Press the tor the ukey to select the

7
Computers can sometimes
"lockup" due to static discharge
or other electrical disturbances.
If this should happen, use a slim,
pointed object to press the
button marked “ACL.”
number of moves to mate the program
will search. NONENONE will appear if no mate
is found.
MATE 1 MATE 2 MATE 3 MATE 4
MATE 5 MATE 6 MATE 7 MATE 8
Note: You can only change the level
while it is your turn to play.
Book Opening Trainer
IVAN makes it easy for you to learn the
same openings that world chess champi-
ons play! At the beginning of a game, you
may choose to learn one of 32 popular
book openings—ways to begin the
game—used by chess masters. Press
OPTIONS repeatedly to display OPENOPEN,
and then press the tor the ukey to
select the number of the opening you
want to learn. (See list on right.) Press the
CLEAR key to return to normal play.
Now play a move. Ivan will tell you if
your move is not the correct opening
move. To learn the correct move press
CLEAR and then press HINT. When the
computer comes back with its move, you
will briefly see the word OPENOPEN on the
screen if you have another opening move
to make. If the word OPENOPEN does not
appear, you may continue normal play.
You have completed the training for that
opening line.
The names of the openings are:
1. Ruy Lopez, Open Defense
2. Ruy Lopez, Zaitsev Defense
3. Ruy Lopez, Exchange
4. Scotch Game
5. Scotch Four Knights
6. Giuoco Piano
7. Two Knights Defense
8. Four Knights
9. Petroff’s Defense
10. Sicilian Alapin Variation
11. Sicilian, Najdorf Variation
12. Sicilian, Dragon Variation
13. Sicilian, Keres Attack
14. Caro-Kann Defense
15. Panov-Botvinnik Attack
16. Caro-Kann Excahnge Variation
17. Queen’s Gambit Declined
18. Lasker Defense, Queen Gambit Declind
19. Queen Gambit Declined Exchange Var.
20. Slav Defense
21. Queen’s Gambit Accepted
22. Nimzo-Indian Defense, Classical Var.
23. Nimzo-Indian Defense, Rubinstein Var.
24. Semi-Slav Defense
25. Queen’s Indian Defense
26. Queen’s Indian Defense, Petrosian Var.
27. Bogolubow Indian Defense
28. Catalan
29. Gruenfeld Defense
30. King’s Indian Defense
31. Modern Benoni Defense
32. Benko Gambit
The moves and explanations of these famous
openings are given in many books on chess.
Entering Your Own Opening
IVAN also allows you to set up any book
opening you want—or even an opening
you invent—to practice. Press MULTI-
MOVE, then make moves for both sides
until the opening position you want to
practice is reached. Now press MULT-
MOVE again. Press CLEAR and play
against the computer in this position.

8
Ratings
To view your rating, press the RATING
key. Your current rating appears on the
display.
To have your rating change, you must
complete a rated game on a tournament
or sudden death level.
When you are ready to play a rated game,
select the RATERATE option.
1. Press the OPTIONS key repeatedly
until you see RATERATE appear.
2. Press the tor the ukey to turn the
option On.
3. Press CLEAR.
Finally select the Tournament Level or
Sudden Death Level you wish to play
against.
Piece Training
You can practice in eight different train-
ing positions. There are five special mini-
games and three mating-practice posi-
tions.
Mini-game positions
The most famous and successful chess
teachers in the world take their beginning
students from the simple to the complex
by having them play "mini-games" of
chess that concentrate on just one or more
types of pieces. Even advanced players
practice these basics, just as a concert
pianist continues to practice the scales so
that they remain second nature. Like any
great trainer, IVAN will play you these
special practice games.
First make sure you are at the start of a
game by pressing NEW GAME. Now
press OPTIONS until TRAINTRAIN is dis-
played. Then press the ukey. Look at the
LCD to see which of the mini-games are
displayed. You'll see that the mini-games
always include the king and pawns for
both sides. In fact, one mini-game con-
tains just this material. The other four
mini-games use kings and pawns, but add
a different single piece to the exercise-
knight, bishop, rook, and then queen.
Start with the basic king and pawns mini-
game.
Make your first move. Your object, as in
regular chess, is to checkmate the king.
Normally, this means both sides will try
to force a pawn through to the other side
of the board safely to promote it to a
queen. You'll learn lots of principles,
tricks, and traps in this training mode that
will win you many full-fledged chess
games!
Mating-practice positions
To win at chess, you have to know how to
checkmate! Just knowing that you have
enough material to mate doesn't earn you
the point. IVAN's mating-practice exer-
cises will make sure you know the tech-
niques.
After pressing OPTIONS until TRAINTRAIN
appears, again press the ukey until you
come to positions without pawns and
with the Black king in the middle of the
board. These are the mate-training posi-
tions. The three different mate-training
positions give White, besides his king,
either two bishops, two rooks, or the
queen. These are excellent exercises,
used by the greatest chess teachers in the
world. In all three positions you can force
mate in a number of ways. Work on these
mate-training exercises until you can
mate Black efficiently.

9
When an ‘O’ appears on the display, the
game you are playing can be rated. Since
the game you are playing is rated, you
cannot ask for a HINT, nor TAKEBACK
a bad move, nor use SETUP to improve
your position. You also cannot use the
NEW GAME key to start over during a
rated game.
These conditions attempt to allow you to
experience what it is like to play a game
against an opponent in a rated tourna-
ment. In rated tournaments a chess clock
is always used, so that you play your
moves within agreed upon time limits.
IVAN has the chess clock built in to it.
If you attempt to use the HINT, SETUP,
TAKEBACK, or NEW GAME keys dur-
ing your rated game, IVAN will ask
"ARE YOU SURE", and say what result
(draw, win, or loss) will be scored if you
press the YES key.
During a rated game if you are winning
by 9.0 or more points and want LCD
Chess to resign, press MODE then NEW
GAME. IVAN will say "ARE YOU
SURE I LOSE". IVAN will then wait for
you to press YES.
Using Setup Mode
At any time during a game when it is your
move, you may change the position on
the board by adding a piece, removing a
piece, or changing any of the pieces—for
example, from a queen to a knight.
Removing APiece
Press the SETUP key. Then on the large
sensory board, press the square the piece
is on until the square on your display is
empty. Press CLEAR to continue the
game.
Adding or Changing a Piece
Press the SETUP key. Next press the key
that indictaes the type of piece you want
to place on the board. Then on the large
sensory board, press the square on the
sensory board until the piece appears as
the correct color on your display board.
Press CLEAR to continue the game.
Setting Up Special Positions
This is another terrific feature that allows
you to solve problems that you see in
magazines or newspapers, or that you
make up yourself. It also allows you to
enter game positions you want to play, or
that you want IVAN to look at, perhaps
using the Infinite Search level.
Normally, it is easier to start from an
empty board to set up such problems. So
first, press the OPTIONS key repeatedly
until CLRBRCLRBR (clear board) is displayed.
Now press the SETUP key. You’ll see
that your display board is automatically
cleared.
On the large sensory board, press the
square the White king is on. Next press
the square the Black king is on once to
place a White king there, and then again
to change the White king to a Black king.
Next, pick out another piece in the prob-
lem or position you want to set up, and
press the appropriate piece key to the left
of the display. Then press the square on
the sensory board where this piece should
stand. Press the square repeatedly until
the piece appears in the right color on
your display.
Follow this procedure until all the pieces
in the problem or position are completely
set up.
Make sure that IVAN knows which color
is to move. You may change the color of

from one square to another square which
is vacant or occupied by an enemy piece.
3. No piece, except the Knight may cross
a square occupied by another piece.
4. A piece moved to a square occupied by
an enemy piece captures it as part of the
same move. The captured piece must be
immediately removed from the chess-
board by the player making the capture.
5. When one player moves into a position
whereby he can attack the King, the King
is in “Check”. His opponent must either
a) move the King
b) block the path of the attacking piece
with another piece, or
c) capture the attacking piece.
6. The game is over when there is no
escape for the King from an attacking
piece. This is known as “Checkmate”.
7. The game is over when the king of the
player whose turn it is to move is not in
check and the player cannot make any
legal moves. This is known as
“Stalemate” and is considered a drawn
game.
Individual Moves
Turn on the HELPHELP feature (see page 4.)
All legal moves for each selected piece
will be shown at one time. You will
quickly “learn by doing” the movements
of all pieces.
1. The Queen can move to any square
along the same row, column, or diaganols
on which it stands, but cannot pass over
an enemy piece.
2. The Rook can move to any square
along the same row or column on which
it stands, but cannot pass over an enemy
piece. See also Castling (on right.)
3. The Bishop can move to any square
along the diaganols on which it stands,
but cannot pass over an enemy piece.
10
General Rules of Chess
1. The two players must alternate in mak-
ing one move at a time. The player with
the white pieces moves first to start the
game.
2. With the exception of castling (see
below), a move is the transfer of a piece
Remarks about IVAN
IVAN says things based on a number of
factors. Some factors are time, a winning
or losing score, a training position, or
level setting to name a few. Try removing
IVAN’s queen from the chess board by
using the procedure on page 9 for
Removing A Piece as an example.
If IVAN gives you a hard time when you
ask for a hint or try to change sides, press
the key again, and IVAN will comply.
If you can’t wait to experience his com-
ments in across the board play, IVAN can
be coerced into letting you hear a number
of them. The method to enter his special
DEMO mode is to first press the LEVEL
key. Now press the TAKEBACK key, and
IVAN will display DEMODEMO, and say a
phrase. Finally press the OPTIONS key
to hear IVAN at his talkative best. Press
CLEAR when you have tired of his end-
less chatter.
Don’t forget you can always turn IVAN’s
character mode off by using the
OPTIONS key. However if you do, be
prepared for one last word from IVAN.
the side to move by pressing the q/n
key.
Finally, press CLEAR to play or to have
IVAN analyze the position.

Castling cannot occur if:
a) the King has already been moved.
b) the Rook has already been moved.
c) there is any piece between the King
and the Rook.
d) the King’s original square, or the
square which the King must cross, or the
one which it is to occupy is attacked by
an enemy piece.
2. A Pawn may make an en passent cap-
ture if it is a reply move to a double pawn
move, and it is a Pawn which is side-by-
side with the Pawn which made the dou-
ble pawn move. The capture of a white
Pawn is diagrammed below:
4. The Knight move is in the shape of an
“L”, moving two squares up or down, and
then one square over. Or it can be one
square up or down, and then two over.
5. The Pawn can move one square for-
ward. On it’s first move it may move two
squares forward. When capturing, it
moves diaganolly (forward) one square.
See also en passent (below.)
6. The King can move one square in any
direction, as long as it is not attacked by
an enemy piece. See also Castling(below)
Special Moves
1. Castling is a move of both the King
and either Rook which counts as a single
move (of the King) and is executed as
diagrammed below:
11
Special Care
• Avoid rough handling such as bumping or
dropping.
• Avoid moisture and extreme temperatures.
For best results, use between the temperatures
of 39ºF and 100ºF (4ºC and 38ºC).
• Clean using only a slightly damp cloth.
Do not use cleaners with chemical agents.
Battery Information
•Your IVAN uses 4 “AA” batteries.
•Do not mix old and new batteries.
•Do not mix alkaline & standard or
rechargeable batteries.
•Install batteries so that the polarity
(+ and -) matches the diagrams in the battery
compartment.
•Use only batteries of the same type and
equivalency.
•Remove exhausted batteries from the unit.
•Do not short circuit battery terminals.
Excalibur Electronics reserves the right to
make technical changes without notice in the
interest of progress.
AC Operation (Optional)
We recommend using a DC adapter with
a voltage between 6-8 VDC and 50 - 100
milliamps. The inside tip of the connector
MUST be positive. If you have difficulty
locating an adapter contact Excalibur. A
phone number and web site are printed on
the back cover of this manual.
3. A Pawn can be promoted if it advances
all the way to the far side of the board. It
is immediately promoted, as part of the
same move, into a Queen, Rook, Bishop,
or Knight, whichever its owner chooses.
Since a Queen is the most powerful piece,
it is nearly always chosen as the promo-
tion piece. Through the promotion
process, there may be more than one
Queen on the board at the same time.

EXCALIBUR ELECTRONICS, INC., war-
rants to the original consumer that its products
are free from any electrical or mechanical
defects for a period of ONE YEAR from the
date of purchase. If any such defect is dis-
covered within the warranty period, EXCAL-
IBUR ELECTRONICS, INC., will repair or
replace the unit free of charge upon receipt of
the unit, shipped postage prepaid and insured
to the factory address shown at right.
The warranty covers normal consumer use and does not
cover damage that occurs in shipment or failure that results
from alterations, accident, misuse, abuse, neglect, wear and
tear, inadequate maintenance, commercial use, or unreason-
able use of the unit. Removal of the top panel voids all war-
ranties. This warranty does not cover cost of repairs made or
attempted outside of the factory.
Any applicable implied warranties, including warranties of
merchantability and fitness, are hereby limited to ONE
YEAR from the date of purchase. Consequential or inciden-
tal damages resulting from a breach of any applicable express
or implied warranties are hereby excluded. Some states do
not allow limitations on the duration of implied warranties
and do not allow exclusion of incidental or consequential
damages, so the above limitations and exclusions in these
instances may not apply.
The only authorized service center in the
United States is:
Excalibur Electronics, Inc.
13755 SW 119th Ave
Miami, Florida 33186 U.S.A.
Phone: [phone]
Fax: [phone]
www.ExcaliburElectronics.com
Ship the unit carefully packed, preferably in
the original carton, and send it prepaid, and
adequately insured. Include a letter, detailing
the complaint and including your daytime
telephone number, inside the shipping carton.
If your warranty has expired and you want an
estimated fee for service, write to the above
address, specifying the model and the prob-
lem.
DO NOT SEND YOUR UNIT WITHOUT
RECEIVING
AN ESTIMATE FOR SERVICING.
WE CANNOT STORE YOUR UNIT!
712-091102-01
Limited One-Year Warranty
Limited One-Year Warranty