Novag sapphire II User manual

NOVAG
SAPPHIRE II
•INSTRUCTION

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INSTRUCTIONS
I. INTRODUCTION
II. PLAYING THE SAPPHIRE II
III. GAME FEATURES
a) Making moves
b) Capturing a piece
c) Illegal moves
d) Castling
e) En passant
f) Pawn Promotion / Underpromotion
g) Stalemate / Draw
h) Check and Checkmate
i) Early Mate Announcements
j) Resignation
IV. MAJOR FUNCTION KEYS
1. NEW GAME Key
2. LEVEL Key
3. GO Key
4. REFEREE Key
5. HINT Key
6. TRAINING Key
7. TAKE BACK ( ) Key
8. TRACE FORWARD ( ) Key
9. COLOR Key
10. CLEAR/CLEAR BOARD (C/CB) Key
11. VERIFY ( Ver/Set) Key
12. SET UP (Ver/Set) Key
13. SOUND Key
14. INFO Key
15. SAVE GAME Key
16. LOAD GAME Key
V. LEVEL FUNCTIONS (these functions are accessed by first pressing the LEVEL KEY)
17. NEXT BEST Key
18. EASY Key
19. RESTORE Key
20. RANDOM Key
21. PRO PRINT Key
22. PRO PRIOR Key
23. PRO SAVE Key
24. PRO DELETE Key
25. ANALYSE Key
26. BOOK SELECT Key (BK)

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VI. OPTION I/II KEYS (* these functions require the NOVAG Distributor and a PC to be useful)
A. OPTION I KEYS
27. *PRINT MOVES (Key A1)
28. *AUTOCLOCK (Key B2)
29. AUTOPLAY/DEMO (Key C3)
30. *HUMAN MODE (Key D4)
31. *VIDEO MODE (Key E5)
32. REPLAY (Key F6)
33. *PRINT GAMES (Key G7) - immediate action
34. PRINT BOARD (Key H8) - immediate action
35. *GAME RATING (Ver/Set Key)
B. OPTION II KEYS
36. HASH TABLES (Key A1)
37. SELECTIVE SEARCH (Key B2)
38. PASSIVE BOOK (Key C3)
39. ACTIVE BOOK (Key D4)
40. OPENING BOOK (Key E5)
41. LEARN (Key F6)
42. EXTENSIONS (Key G7)
43 *TEST (Key H8)
VII. LCD DISPLAY OF NOVAG SAPPHIRE II / EXAMPLES & EXPLANATIONS
VIII. TROUBLE SHOOTING
IX. TECHNICAL DATA AND FEATURES
X. RULES OF CHESS

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I. INTRODUCTION
The NOVAG SAPPHIRE II is the world’s strongest Travel Chess Computer running on a H8 RISC-Style processor with
160K program memory and 129K working area. It offers an array of new features and has also incorporated Hash-Tables to
significantly improve the chess computer's play, especially the end-game play.
The SAPPHIRE II is also compatible with the NOVAG SUPER SYSTEM. This will enable its full thought processes to be
recorded on a PC (most types) or the game to be displayed or recorded onto a domestic TV through the NOVAG
DISTRIBUTOR and the TV-INTERFACE (optional). Watch as your chess game gains a whole new dimension.
We recommend that you read the instruction manual thoroughly in order to learn how to fully operate and enjoy your
SAPPHIRE II. Section II on Playing the SAPPHIRE II, will provide you with basic information on getting started and on
how to play a game of chess against your computer. After you are comfortable with the basic functions, you will enjoy
learning to use the many special features the SAPPHIRE II offers.
BATTERIES
The SAPPHIRE II runs on 4 x 1.5V UM 4 type, or size "AAA" alkaline or heavy duty batteries (not included).
To insert the batteries, open the BATTERY DOOR on the backside of the unit and place the batteries as indicated by the
+/- signs. a set of new alkaline batteries runs approx. 30 hours (continuous operation). If you don't use your computer over
a long period of time, please remove the batteries.
Note: Do not use regular batteries as they will result in irregular performance.
LOW BATTERY INDICATION
When the LCD display shows [LobATT] this indicates that the battery set of the NOVAG SAPPHIRE II has to be
replaced. The old batteries however will still work for approx. 5 hours.
To replace the batteries: turn off the unit first - the internal capacitor will keep the memory for 30 seconds. To be on the
safe side we recommend to use the adaptor during this procedure to make sure that the memory will be kept.
ADAPTOR
The NOVAG adaptor (Art.No.8210) is not included with your set, but is available separately from your dealer. Please note
that it is a DC 9V adaptor with 300 mA and it has a negative center. If you cannot get the NOVAG adaptor, please make
absolutely sure that you do not buy an adaptor which does not have these specifications. If you use a too powerful adaptor
it might burn the components in your unit. Before using the adaptor, check that the voltage of your electric mains is within
the range specified on the adaptor label.
Note: Make sure you first connect the adaptor with the computer before you plug it into the mains.
MEMORY
The SAPPHIRE II has a long term memory and will retain the last board position. However, make sure that there are
batteries in the chess computer or an adaptor connected otherwise you will lose the memory contents.
II. PLAYING THE SAPPHIRE II
If you wish a quick game of chess without having to use all the special functions of the SAPPHIRE II, you may refer to the
following instructions:
Step l : The power switch is a 2-position switch and is located at the right side panel. This switch operates both adaptor
and batteries. If you use an adaptor the batteries will be automatically disabled.
Step 2 : SET UP all the chess pieces on the chessboard attached to the NOVAG SAPPHIRE (or any chessboard of your
choice) in the opening position.

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tep 3 : Press NEW GAME Key. You will hear 3 beeps and you will see [ ] on the LCD, you are now ready to
begin to play for the White side.
Step 4 : If you want to increase the level of skill, press the LEVEL key (see section IV.2 for level setting and their time
control). On the LCD display you will see a number indicating the present level set.
Step 5 : Once you have set the level, press GO to exit the LEVEL mode. After this procedure you may enter your move
for White using the keypad; for example E2-E4 is entered by pressing the following keys:
E5 B2E5 D4(your completed move will be shown on the LCD).
Once the SAPPHIRE II has registered your move it will immediately start computing its counter move if your
move was a legal one. Illegal moves are not accepted and the SAPPHIRE II will beep 3 times and show [Error]
on the LCD.
Note: Since the NOVAG SAPPHIRE II has no sensor chessboard to indicate its moves you will have to execute all your
moves as well as the computer’s counter-moves on the attached chessboard to keep track of the game in progress.
When the SAPPHIRE II is ready to move it will beep and show its move on the LCD.
SLEEP MODE FEATURE: To activate this feature you will find the necessary switch on the left side panel of the
NOVAG SAPPHIRE II. It is a special keyboard lock to prevent accidental interruption whilst the computer is analysing its
moves. If you do not need this feature please make sure to set this switch to NORMAL position.
III. GAME FEATURES
a) Making moves
Moves are entered using the algebraic notations which is the standard adopted by the World Chess Federation (F.I.D.E.)
each move is specified by the co-ordinates of each square from a1 to h8. To complete a move you have to press the
respective keys in sequence. For example to enter E2-E4 press the following keys:
E5 B2E5 D4
Your entered move is shown on the LCD together with the colour to move, a white box means that White is to move
whereas a solid black box would indicate that it is Black's move.
On the last key press the computer will start computing its reply.
When the SAPPHIRE II is computing all key presses will be ignored except for the GO key which will interrupt the
calculation of its counter-move and force the current move being analysed to be played at once.
Note: Since moves are entered using the long algebraic notation there is no need to indicate captures, castlings or en
passant captures. However, in the event of a promotion the NOVAG SAPPHIRE II will prompt you for the piece
that you wish to promote to. Please press one of the Piece Symbol Keys indicating your choice.
b) Capturing a Piece
If the SAPPHIRE II makes a capturing move it will show on the LCD the symbol "x" and in cases of en passant pawn
captures it will also show "ep". Please remove the captured piece from the chessboard.

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c) Impossible and Illegal Moves
The SAPPHIRE II is programmed in accordance with the International Chess Rules and does not accept nor make illegal
moves. Corrections of illegal moves or mistakes in executing computer moves are very simple.
•If you try to make an illegal move, you hear 3 beeps and on the LCD display you will see the [Error] sign.
You can now make another legal move.
d) Castling
According to the rules of chess you must first move the King then the Rook to complete this move. Enter the square from
which the King is located first and then the square to which the King has to be moved for this castling move. Do NOT enter
the Rook move. The computer accepts and executes castlings in set-up positions.
e) En passant
If you make this special pawn capture you only have to enter the "from" and "to" squares of this move as in a normal
move. The captured pawn is automatically removed by the computer and no further action is required from you. When the
NOVAG SAPPHIRE II makes an en passant capture it will show the signs "ep" along with an "x" on the LCD display.
You or respectively the computer can capture en passant in set-up positions.
Official Rules of Chess:
A pawn attacking a square crossed by an enemy pawn which has been advanced two squares in one move from its original
square may capture this enemy pawn as though the latter had been moved only one square. This capture may be made only
on the move immediately following such an advance and is called capturing "en passant".
f) Pawn Promotion / Underpromotion
If one of your pawns reaches the 8th rank, the SAPPHIRE II will allow you to promote or underpromote it to any desired
piece. As soon as this happens the computer will prompt you for the piece that you wish to promote to and the word [Pro
?] will be shown on the LCD. Press the appropriate Piece Symbol Key to enter your choice for promotion.
THE SAPPHIRE II PROMOTES :
When the computer promotes one of its pawns, it will flash the promoted piece on the LCD. If you missed this display you
can use the VERIFY function to find out which piece has been selected by the computer. The SAPPHIRE II also accepts
and executes pawn promotions in set-up positions.
g) Stalemate / Draw
A draw is announced on the LCD with the appropriate message :
[ dr Stl ] no legal moves, but not in check, therefore draw
[ dr 3rd ] position repeated 3 times
[ dr 50 ] 50 moves made without capture and pawn move
[ dr ins] insufficient material for either side to check mate the other
h) Check and Checkmate
Check announcements are made with the "+" sign on the right side of the move shown on the LCD. Checkmate will be
indicated on the LCD with [nAtE].

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i) Early Mate Announcements
The SAPPHIRE II will always announce mate if it sees it and will show the number of moves to mate on the LCD.
Example : [nAtE 2 ]
j) Resignation
The SAPPHIRE II will recognise positions which are lost or seriously behind in material and will resign the game showing
[ rESiGn] on the LCD. You may reject this resignation and play on but please NOTE that the SAPPHIRE II will only
resign once per game. When you are about to checkmate the SAPPHIRE II, it will not resign and spoil your moment of
glory.
Note: If either side's time runs out, the LCD display will flash [FLAG] and you may continue the game by entering your
next move.
IV. MAJOR FUNCTION KEYS
1. NEW GAME Key
The NEW GAME key will reset the board to the starting position and the LCD shows [ ]. When all the pieces are set
up in their starting position, you are ready to play. Press NEW GAME every time you switch the computer on, or whenever
you wish to commence a new game.
Note: The SOUND, BOOK SELECT, RANDOM, LEVEL function will remain the same. EASY and REFEREE are
turned off.
2. LEVEL Key
The SAPPHIRE II has 8 different types of Levels and 64 unique time controls to suit every type of players. You may enter
different playing levels for WHITE and BLACK.
To set the NOVAG SAPPHIRE II to any of the 8 different types of levels press the LEVEL key. Each further press will
advance to the next level Group and you will see on the LCD the abbreviation of the level that you have selected.
TR = Tournament Level, AT = Average Time Level, SD = Sudden Death Level, FD = Fixed Depth Level, AN =
Analytical Level, EA = Novice Level, BE = Beginner Level, IN = Find Mate Level.
Please refer to the Level Chart for the meaning of each of the 64 time controls.
Example: If you wish to set level "At 4", press LEVEL until the display shows "At 1" and then press the number key
D4. On the LCD display you will see [LE.At4] indicating the level which is set up. Once you have selected
the desired skill level press GO to exit this mode.
You can always check or change the skill level during a game, however not whilst the computer is calculating. Changing
level resets the clocks.
Note: If you switch the computer off to continue your game at a later time or if you start a New Game, the previously set
skill level will be retained.

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LEVEL CHART
Level Square Time Control Level Square Time Control
TR
1
a1
40 moves in 5 minutes
AN
1
e1
9 ply search
2 a2 40 moves in 15 minutes 2 e2 10 ply search
3 a3 40 moves in 30 minutes 3 e3 11 ply search
4 a4 40 moves in 60 minutes 4 e4 12 ply search
5 a5 40 moves in 90 minutes 5 e5 13 ply search
6 a6 40 moves in 100 minutes 6 e6 14 ply search
7 a7 40 moves in 2 hours 7 e7 15 ply search
8 a8 40 moves in 2.5 hours 8 e8 Infinite search
1 ply search with limited
capture search:
AT 1 b1 2 seconds per move EA 1 f1 1 ply + 2 captures
2 b2 5 seconds per move 2 f2 1 ply + 3 captures
3 b3 10 seconds per move 3 f3 1 ply + 4 captures
4 b4 15 seconds per move 4 f4 1 ply + 5 captures
5 b5 30 seconds per move 5 f5 1 ply + 6 captures
6 b6 1 minute per move 6 f6 1 ply + 7 captures
7 b7 2 minutes per move 7 f7 1 ply + 8 captures
8 b8 3 minutes per move 8 f8 1 ply + 9 captures
SD 1 c1 game in 3 minutes BE 1 g1 2 ply + 2 captures
2 c2 game in 5 minutes 2 g2 2 ply + 3 captures
3 c3 game in 10 minutes 3 g3 2 ply + 4 captures
4 c4 game in 15 minutes 4 g4 2 ply + 5 captures
5 c5 game in 30 minutes 5 g5 2 ply + 6 captures
6 c6 game in 1 hour 6 g6 2 ply + 7 captures
7 c7 game in 1.5 hours 7 g7 2 ply + 8 captures
8 c8 game in 2 hours 8 g8 2 ply + 9 captures
FD 1 d1 1 ply search IN 1 h1 mate in 1
2 d2 2 ply search 2 h2 mate in 2
3 d3 3 ply search 3 h3 mate in 3
4 d4 4 ply search 4 h4 mate in 4
5 d5 5 ply search 5 h5 mate in 5
6 d6 6 ply search 6 h6 mate in 6
7 d7 7 ply search 7 h7 mate in 7
8 d8 8 ply search 8 h8 mate in 8
Description of level time controls:
•Tournament Level TR 1 - TR 8
For tournament time controls. All moves are pre-set which have to be played within a fixed time, e.g. 40 moves in 120
min. (level 8 is the strongest). If you or the computer exceeds the specified time control, the game will be declared lost.
•Average Time Level AT 1 - AT 8
These levels are to be used for casual play. They allow you to enter the average response time per move for the
computer. The computer tends to play faster during opening and end games.
•Sudden Death Level SD 1 - SD 8
For play to the finish. The computer has to finish its game within a given time. If you or the computer exceed the
specified time control, the game will be declared lost (clocks count down to zero and LCD shows [FLAG] and 3 beeps
to warn you if you overstep). If you wish you can continue to play and finish the game. On the LCD display the total
time used will be shown and will count continuously.
•Fixed Depth Level FD 1 - FD 8
Important for analysis purpose. The computer will only compute up to the depth selected. This provides a means of
limiting the SAPPHIRE II play to suit a wide range of opponent's abilities.
•Analysis Level AN 1 - AN 8
These levels provide deeper searches for more difficult problems.

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•Novice Level EA 1 - EA 8
1 ply search with limited capture search. These levels provide a level of play even suitable for novice players.
•Beginner Level BE 1 - BE 8
2 ply search with limited capture search. These levels provide a level of play for mediate beginner.
Note: All of the above levels can be modified by turning on the EASY mode (see section 17). This keeps the computer
from searching while you are thinking and weakens its play.
•Find Mate Level mate-in-1 to mate-in-8
On Find Mate levels the computer will find the shortest mate up to the stipulated depth. The Find Mate levels use a
different program than the normal playing levels. The normal playing levels will generally find a check mate in any
given position in less time, and generally in much less time than the Find Mate levels. However, the normal playing
levels do not guarantee that the check mate found is the shortest mate possible.
The following position illustrates this point. On Find Mate level 4, it takes the computer 40 seconds to find Bxa7 and
announce mate in 3 more moves. However, on the normal playing levels it takes the computer only 11 seconds to find
e2-e4 which is in this case a Mate-in-5 moves! (Figure 1.)
Figure 1: Figure 2:
-vvL-ssN +-+ R+-+-+Nmk
zzp +n+-+- +-+-+-+p
-+-zzP-zP-+ -+-+pvlpzP
+-snk+LzP- sn-zp-+-+n
P+-+-+-+ -+p+l+-+
zN-+-+-+- mK-zp-+-zpq
K+-+P+-zP -+-+-+-+
+Q+-+-+- +-+-+-+-
On the other hand, the mate in 6 moves is found much faster by Find Mate level 6. (Figure 2.)
Generally expect the Find Mate levels 5, 6, 7 and 8 to take a long time. If there is no mate in the stipulated number of
moves the LCD display will show [no nE].
The solution to this position is Rb8 and takes about 46 seconds on Find Mate level 6 but takes a couple of hours on
regular search!
Whilst the NOVAG SAPPHIRE II is searching it will show the main variations which it is presently considering and
will rotate a variety of informations on the LCD display in the following order:
a) Time used up so far (example : “ 01 : 35”)
b) First move of main line (example : “G5 G4”, display of the most anticipated move for Black)
c) Second move of main line ( example : “F3 H4”, display of the thereafter expected counter-move for White)
d) Third move of main line (example : “D6 D5”, display of the anticipated counter-move for Black)
e) Evaluation of the position = score from the computer’s point of view
f) ( example : “ 0 21”, means + 0.21 pawns up)
g) Depth of search (example: d 6 means now searching 6 halfmoves)
h) Moves not searched during current iteration (example: 15 21, means 15 moves out of 21 are not searched during
the current iteration)
i) If there is no solution you will see [no nE]
•INDEPENDENT LEVEL SETTINGS FOR BLACK AND WHITE
a. Press LEVEL key to enter level mode. Follow procedure on pages 7 & 8 to set level for WHITE.
b. Then press COLOR key (to toggle to BLACK). Repeat procedure on pages 7 & 8 to set level for BLACK.
c. Press GO to exit.
Note: Setting a WHITE level will change the level for both BLACK & WHITE.
Setting a black level will change BLACK only.

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•USER PROGRAMMABLE TIME CONTROLS
You may set your own time controls either for both sides or independently for each side.
Use the procedure on pages 7 & 8 to choose any TR (tournament level) or any AT (average time) or any SD (sudden
death) level. For TR levels you can now program the number of moves to the time control and the time control
for AT/SD levels you can program the time control only, using the following procedure:
After selecting your level type press VERIFY / SET UP key to enter user programming mode.
1) If a TR level is programmed, then the display will show [n 40] with '4' blinking. This shows the number of moves to
be played in the designated time and the active digit is the '4' (10s of moves). Press TRACE FORWARD ( ) key or
TAKE BACK ( ) key to increment or decrement.
Press VERIFY/SET UP key to advance to the next editing digit. Press TRACE FORWARD ( )key or TAKE BACK
( ) key to increment or decrement.
When both digits of the number of moves have been programmed, the time control will be displayed. Continue with
the instructions below to set the time control.
2) If an AT or SD level is programmed, then the display will show [00:00:00] with the first '0' (10s of hours). The
display will show [hh:mm:ss] (hours:minutes:seconds) which can be programmed using TRACE FORWARD or
TAKE BACK key and Verify as above.
Once you have programmed the White level, either press GO to save your programmed level and play with both
WHITE & BLACK set to this level, or press COLOR to toggle to black. You may now repeat the above procedure for
programming move number and time controls for the Black side. Press GO to exit.
The number of moves may be set 01-99 inclusive and the time may be set to 00:00:00-17:59:59 inclusive. The user is
never allowed to violate the min/max moves and time.
3) When reprogramming the level settings the listed keys perform the following functions:
−VERIFY - select the next digit.
−OPTION I/II - select the previous digit.
−TRACE FORWARD ( ) - increment the current digit.
−TAKE BACK ( ) - decrement the current digit.
−CLEAR - return to default table settings.
−LEVEL - exit without saving the new time control. Use LEVEL to exit after viewing programmable levels.
−COLOR - set a different level for BLACK.
−GO - exit procedure and save setting and then return to game.
3. GO Key
The GO Key is used in conjunction with many of the SAPPHIRE II special functions and normally acts as an Exit key.
Please note that in many cases when Error appears, the GO key has not been pressed to exit the last function used.
MAIN USES:
•To make the SAPPHIRE II compute for the colour to move, even if in REFEREE mode.
•To exit from the VERIFY / SET UP / LEVEL mode.
•To start the SOLVE MATE search.
•To start the AUTOPLAY/ DEMO mode.
•To interrupt the computing time and force a computer move instantly. The computer will make the move it currently
considers the best. Please allow at least 5 seconds of search time before pressing this key in order to let the computer
calculate a reasonable move. The evaluations of these moves do not correspond with the evaluation of the set-up
level.
•To change sides during a game. Wait until it is your turn to move then press GO. The computer will now compute a
move for your colour, and you will play the other colour from now on.
•To let the computer play against itself, which might be of special interest at a certain point during the game or for
learning purposes. Every time you press GO the computer calculates for the side to move. All moves will be
computed according to the set playing levels.
•To accept a HINT. If the first Hint is shown on display, pressing GO accepts the Hint as though keyed in.

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4. REFEREE Key
This is a toggle function which allows the user to play a game on the computer with the computer only checking the legality
of the moves and declaring DRAW, CHECK MATE, and STALE MATE. This is also how games can be entered into the
computer to be analysed (see ANALYSE function).
All games played could be stored in one of the 64 games slots (see STORE GAME) or could be entered for processing to a
PC (see INTERFACE).
The LCD display will show [rEF] where REFEREE is off and [rEF ≡] when REFEREE is on. The first press shows the
current status of REFEREE. Press the REFEREE key a second time within two seconds that the REFEREE message is on
the LCD display to change that function. The REFEREE mode may be selected at any time during a game except while the
SAPPHIRE II is computing.
Note: The SAPPHIRE II may be called upon to compute for the side to move by pressing the GO key.
All features are available whilst REFEREE mode is on.
5. HINT Key
The SAPPHIRE II can suggest moves if you are not sure how to continue your game. This is a great tutoring feature. When
pressing the HINT key you may recall the following information:
ON YOUR MOVE :
Pressing the HINT key when it is your turn to move will show the move which the computer thinks is your best move.
Pressing the GO key while the computer displays the first Hint, makes the computer accept this move as though you played
it. You may make also a move of your own choice whilst any Hint is being displayed.
Note: The displayed Hint move is the move which the computer is thinking on when EASY is off.
WHILE COMPUTING :
If you press the HINT key whilst the computer is calculating, the display will show the move the computer thinks is so far
the best for itselft.
Press HINT key to display the move(s) being considered by the computer as the best line of play up to 9 ply (the display
shows the "from" and "to" square of the considered move and [h int#], where # represents a number from 1-9 showing the
depth of the move).
−Press HINT to cycle through the best line.
−Press CLEAR to remove the Hint display.
−Press GO when [h int1] is displayed during the human's turn to play the Hint move on the board.
6. TRAINING Key
This function is provided for the novice player. It could be useful for the novice player who is in check and does not know
what choices he or she has to get out of check.
Step 1: When it is your turn to move press the TRAINING key and the computer will show the "from" square
(indicated on the LCD) of the first piece with a legal move.
If you continue to press the TRAINING key, the SAPPHIRE II will show you all pieces with at least one
legal move. You may cycle through this step as often as you wish. When no more pieces are available to be
legally moved, then the display shows [ ].
Step 2: Once you have selected a piece, press GO to have this square accepted as though keyed in. If a "from"
square has been entered then each press of the TRAINING key will show now each legal "to" square by this
piece.
Step 3: If you accept the move as displayed, press the GO key and the computer will then make its counter move.
If you wish to make a move other than displayed, clear first the display by pressing the CLEAR key and then
execute the move of your choice.
Should you wish to go back to Step 1, use the CLEAR key to reset the LCD display and then press the
TRAINING key to go to Step 1.
xx – – – –

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7. TAKE BACK Key (key is marked )
Use this key to retract a bad move or just try a different line of play. Wait until it is your turn to move. Press the TAKE
BACK key and the move to be taken back will be alternately flashed on display along with the captured piece and square if
any (remember to replace this piece). Press TAKE BACK several times to take back multiple moves. When you reach the
beginning of the current game the display will show [bEG in].
To exit this mode make your next move or recall a computer move by pressing the GO key.
To clear the display press the CLEAR key.
Note: If you select the COLOR or SET UP function to alter the position of any of the pieces, all prior moves will be
deleted and you may not TAKE BACK moves before the change of colour or position. If no moves are in the game
history the LCD will show [bEG in].
8. TRACE FORWARD Key (key is marked )
This key is mainly used for tracing forward all moves after using the TAKE BACK or RESTORE function. Every press of
this key will replay a move of the current game until all moves in memory have been replayed.
This is indicated by the word [En d] on the LCD. To clear the display press the CLEAR key.
9. COLOR Key
This key has different functions :
−When in VERIFY or SET UP mode this key changes the colour for the entry or verification of the board position.
−The computer is generally programmed to play White first. In some cases if you want to play Black and move first
press:
Key sequence: NEW GAME →COLOR →enter your first move for Black
The computer will make its move for White.
−The COLOR key can be pressed at any time during a game and the colour to move will be reversed. Any moves made
prior to pressing this key will be erased and the game history will begin with this position.
−When in LEVEL mode this key will allow the setting of separate levels for White and Black.
10. CLEAR / CLEAR BOARD Key (key is marked C/CB)
This key has different functions :
−When in SET UP mode the CLEAR BOARD key will clear the entire board of all pieces to make setting up a position
easier.
−When in LEVEL mode and while the LEARNING message [LEArn≡
≡≡
≡] is on display, this key will clear all the current
learned positions from the computer memory.
−When the CLEAR BOARD key is pressed at all other times, it will act as a clear entry key.
For example: If there are messages on the LCD display like [rAnd≡
≡≡
≡], [EASY≡
≡≡
≡] etc. you can clear them by pressing
this key.
−If you start entering a move and wish to cancel it you may press this key to clear the LCD display and start over again.
Pressing this key will clear the LCD display back to [ ] showing the symbol of the colour to move.
11. VERIFY Key
This key has a double function:
•On the first press you will enter the VERIFY mode and the LCD will show [VEr – –].
•On the second press you will enter the SET UP mode and the LCD will show [SEt – –].
•To exit either of these modes press the GO key.
At any point in a game or after entering a board position you can check the position of any number of pieces. You can also
check each square to see if it is occupied and by which piece. In this mode there are two ways to verify the position of
pieces.
xx – – – –

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•Enter the square you wish to verify and the NOVAG SAPPHIRE II will show the symbol of the piece which is
occupying this square and its colour. If the square is empty the left side of the LCD display will be blank. (Only the
entered square position will be displayed).
•Press any Piece Symbol Key and its present position will be displayed. If the required piece is not on the board you
will just see the Piece Symbol and the message [VEr – –]. If there are more pieces of the selected type you will see
their respective locations with subsequent presses of the same Piece Symbol Key until all verified pieces are recalled,
then again the message [VEr – –] will appear.
•Press the COLOR key to verify opposite colour chess pieces.
•You may exit this mode any time by pressing the GO key. Enter now your next move or call off a move for the
computer.
12. SET UP Key
This mode is designed to enable you to set up board positions to solve chess problems or to set handicaps by removing or
entering a piece, as well as changing the positions of pieces. In SET UP mode the computer's legality check as to the
movement of pieces is disabled and you can enter, remove or change positions of any piece. However you cannot set up an
incorrect position, e.g. play without both Kings or with more than one King for each colour . . . etc.
If you exit the SET UP mode with an illegal position, you will hear three beeps and the [Error] sign will be on display.
Use VERIFY mode to see what is illegal about the position.
The computer will accept and execute castlings, pawn promotion and en-passant captures if you play from a set up board
position.
Note: All previous stated moves are cancelled as soon as you enter the SET UP mode.
To enter this mode press the SET UP / VERIFY key twice or if you are already in the VERIFY mode once. You will see
the word [SEt – –] on display.
To exit this mode press the GO key or change to the VERIFY mode.
a. Removing a piece / clearing the entire board
•Press the SET UP key.
•To remove a piece just enter the square on which it presently stands.
•To clear the entire board of all pieces press the CLEAR BOARD key.
•To end this mode press the GO key or change to the VERIFY mode to check the new board position.
b. Entering or moving a piece / setting up a board position
•Press the SET UP key, if you are not yet in the SET UP mode.
•To enter a piece, first make sure that the colour symbol on the LCD display is correct. If not, press the COLOR
key to change this. Next, press the key with the Symbol of the Piece you wish to enter, then enter the square
position to where you wish to place this piece.
Entering the position of an occupied square clears that square and selects that piece as the current piece and
colour.
Examples: If a black Pawn is on E2 and the user wishes to place white Knight on E2, enter square E2 to clear
the square first, then select the white Knight and finally enter square E2 again and replace the piece
on your chessboard. You cannot select just a white Knight and enter it on square E2, this will only
empty square E2 and leave the black Pawn as the current piece and colour.
•To move a piece from one square to another, simply enter the present square position of the piece that you wish to
move. Next enter the square that you wish to move this piece to.
•To set up a board position clear the board by pressing the CLEAR BOARD key. Select the pieces to be entered
via the Piece Symbol Keys and then enter the square positions. Change the colour whenever required.
•To end this mode press the GO key.
Note: After having left the SET UP mode, if a change of colour is required, press the COLOR key. You may now
enter a move for the indicated colour or make the computer move by pressing the GO key.

13
13. SOUND Key
The NOVAG SAPPHIRE II has four different sound settings, which will be indicated on the LCD display.
a) Setting 1 [Sound ] : There will be no acoustic signals at all. This is useful for those late night games when
you don't want to bother anyone.
b) Setting 2 [Sound – ] : There will be an acoustic signal only when the computer answers with its counter-
move.
c) Setting 3 [Sound = ] : There will be an acoustic signal when pressing any key and when the computer or
you make a move.
d) Setting 4 [ Sound ≡
≡≡
≡] : The same sound setting as mentioned under c) and in addition this option turns on
the WARNING feature, where the computer will indicate when one of your pieces
is threatened. You will hear a double beep and the position of the threatened piece
will be on display. This is an useful feature for the novice player.
Note: Press the SOUND key to display the current sound setting. Press the SOUND key within 2 seconds to change the
sound setting. The SOUND setting mode will be terminated automatically after 2 seconds.
14. INFO Key
This key provides information on the current game as it progresses and has a rotational display to show many messages.
•First press on the INFO key shows the clock of the side to move. On display you will see the message [totAL] for 1
second and the colour symbol of the side whose clock is being shown.
•Second press on the INFO key shows the clock of the side not to move, [totAL] and the colour symbol will be
displayed).
•Third press on the INFO key shows the score [ScorE] for the current side to move. This gives you some idea of how
the computer thinks you stand in the current position.
Example: If the computer sees that it can force a mate, the display will show the mating depth as [n 03], which means
a mate-in-3.
Disadvantageous evaluations are marked with a " –" sign. For example if the computer sees you or it is going to be
mated then the score could be [–n 03].
•Fourth press on the INFO key will show the current move count. The display will show [count] and the colour symbol.
Note: Use the CLEAR key to clear the INFO display. When the computer is calculating the display will show either
the rotating display or one of the above INFO displays. To get back to the rotating display press the CLEAR key
again.
The rotating display shows the current search status while the computer is calculating:
•The time spent on this search so far
•The first 3 ply of the line of play the computer calculates the game will follow from this point
•The computer's evaluation of the position
•The current search depth
•The number of legal moves remaining to search and the total number of legal moves.
Note: Each display stays for 2 seconds.
15. SAVE GAME Key
This function saves a game to the computer's memory or erases a game from its memory. It allows up to 64 games (from
A1, A2, A3, ..... to H8) to be saved.
•Pressing the SAVE GAME key when it is your turn to move allows you to enter the SAVE GAME menu. The LCD
display will show [SAVE xx] where the “xx” represents an empty square. Once SAVE GAME has been activated the
display shows for example [SAVE b1], whereas square “B1” stands for the first empty square available. The cycle
continues from A1-A8, A2-H2, etc. to A8-H8. The user may enter any square of his choice by selecting the A1-H8
keys.

14
EXAMPLE: To save a game on C5 press SAVE GAME then press C3 and the LCD will show [SAVE c-]. To
complete the entering of the game location press now the E5 key.
Press SAVE GAME during the cycle to save the game history onto the displayed square location.
•To erase a game from the game memory location press NEW GAME, then SAVE GAME and enter the suqare location
you wish to erase.
EXAMPLE: To erase a game from location C5, press NEW GAME, SAVE GAME and enter C3 and E5.
To terminate the SAVE GAME function press the CLEAR key any time during the cycle.
Note: The SAVE GAME function only works when the game starts from a New Game position. You cannot save a game
if you are in Set Up mode.
16. LOAD GAME Key
This function loads a game stored in memory.
•Always press NEW GAME and SAVE GAME before loading a game. The LCD will show [LOAd xx] where “xx”
represents a saved game location. Supposingly square A1 is empty and B1occupied, the LCD shows [LOAd b1]
representing square B1 as the first saved game location. The cycle continues viewing all locations containing a saved
game. You may enter any location of your choice by using the A1-H8 keys.
EXAMPLE: Press E5 and the LCD will show [LOAd e-] prompting for the completion of the location entry.
– To load the game currently displayed on the LCD from the memory press LOAD GAME during the cycle.
– To terminate the LOAD GAME function press CLEAR during the cycle.
Note: LOAD GAME only works from a New Game position. You cannot load a game if you are in Set Up mode.
To view the stored game use the TRACE FORWARD or TAKE BACK key. All clock information is saved or
restored during the SAVE/LOAD GAME function.
V. LEVEL FUNCTIONS
(The following functions are accessed by first pressing the LEVEL KEY)
17. NEXT BEST Key
Key Sequence : LEVEL →NEXT BEST (take back move as indicated)
This feature enables you to check if another good move is possible to play instead of the one just played. After you have
taken back the last move indicated, the SAPPHIRE II will immediately begin computing the Next Best move that is
available in the position. If such a move is found it will be played.
To activate this function press LEVEL then NEXT BEST key to have the SAPPHIRE II generate the move the computer
considers to be second best in the position. The LCD and the LEDs on the chess board will indicate which move has to be
taken back. When you have taken back the move, the SAPPHIRE II will begin calculating the best alternative move.
If any of the Find Mate levels are set, then this would be the same as searching for 'cooks'. After pressing the NEXT BEST
key the computer will prompt you to take the last move back. You may press the CLEAR key. Then the computer will
calculate of another alternative. You may continue this process for up to 8 alternative moves.
Note: This function only works if there is at least one move played in the current game.
18. EASY Key
The NOVAG SAPPHIRE II always uses the opponent’s time to compute its best response which is quite an advantage as it
will sometimes reply instantly (even if the move appears difficult) since it has predicted your move and completed its
assessment of your move. To disable this advantage please use the EASY key. To activate this mode press EASY twice and
you will see the message [EASY≡
≡≡
≡]on the LCD and if turned off you will see [EASY]. This key acts as a toggle with
alternate key presses turning it ON and OFF.
Note: This feature is automatically disabled when the NEW GAME key has been pressed.

15
19. RESTORE (GAME) Key
Pressing this key will immediately make the computer go to the first move of the game. The LCD display will show
[bEGin] to indicate the beginning of the game history. You may then use the complementary function key TRACE
FORWARD to step through the game move by move.
Note: If you play any move on the board during the RESTORE or TAKE BACK function, this will clear the remaining
game history.
20. RANDOM Key
Every time you switch the computer on, the move with the highest rating is automatically chosen. This is based on the
depth of search which is determined by the set level. This is always the case after the opening is finished. However, this
may not always provide the desired variety.
There are 4 options with RANDOM. The default is [rAnd] which means little randomness and will generally make the
computer play its very best. The next options designated as [rAnd–], [rAnd=] and [rAnd≡
≡≡
≡] , make the computer vary its
play more and more. The [rAnd≡
≡≡
≡] will provide quite varied games but the computer will play somewhat weaker.
Note: Press the RANDOM key to select one of the four Random levels. The RANDOM setting mode will be terminated
automatically after 2 seconds.
21. PRO PRINT Key (this function requires a PC and the NOVAG Distributor)
This function prints the user's programmable opening book via the serial interface.
Press NEW GAME key →LEVEL key →PRO PRINT key
PRO PRINT only works from a New Game position and at least one programmable opening book move must have been
saved via PRO SAVE or PRO PRIORITY function.
22. PRO PRIOR Key (this function requires a PC and the NOVAG Distributor)
This function allows the user to save the user programmable opening book at the highest priority, which means each new
entry will be placed in front of all stored opening books.
−Press NEW GAME key
−Switch on Referee mode [REF≡
≡≡
≡]
−Enter opening book moves
−Press LEVEL key →PRO PRIOR key
No Set Up position or colour to move changes are allowed before a PRO-OP PRIORITY entry.
23. PRO SAVE Key (this function requires a PC and the NOVAG Distributor)
This function saves any opening lines to the user programmable opening book. This function is the same as
PRO PRIOR function, with the only difference that the new opening moves are saved at the lowest priority which means
each new entry will be stored at the end of the already entered opening books.
−Press NEW GAME key
−Switch on Referee mode [REF ≡
≡≡
≡]
−Enter opening moves
−Press LEVEL key →PRO SAVE key
No Set Up positions or colour to move changes are allowed before a PRO-OP SAVE entry. The currently played game
history is saved in the user programmable opening book.
24. PRO DELETE Key (this function requires a PC and the NOVAG Distributor)
This function deletes one or all opening lines from the user programmable opening book. To delete opening moves
proceed as follows:
−Press NEW GAME key
−Switch on Referee mode [REF≡
≡≡
≡]
−enter the complete opening line
−Press LEVEL key →PRO DELETE twice

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Pressing PRO DELETE key for the first time will show on display [dEL?]. Press PRO DELETE again to confirm that you
wish to delete these opening lines.
Note: If you have stored more PRO-OP Books containing e2-e4 opening lines you may delete ALL of these opening
lines starting with e2-e4 by pressing NEW GAME →REFEREE mode ON →entering e2-e4 →and then pressing
LEVEL →PRO DELETE twice. Press CLEAR to avoid deleting the line after pressing PRO DELETE once.
25. ANALYSE Key (this function requires a PC and the NOVAG Distributor)
By using this feature you can ask the NOVAG SAPPHIRE II to play through a game in memory and suggest alternative
moves. The computer can be set to analyse for White, Black or both colours.
This function offers 4 choices:
•The default mode is [AnALY] which means no analysis.
•Pressing the SAVE GAME key again will show [AnALY ] which means the White moves will be analysed.
•Another press will show [AnALY ] which means the Black moves will be analysed.
•Finally another press will show [AnALY ] which means both sides will be analysed.
Use the ANALYSE function after a game has been played against the computer or after entering your own
game using the REFEREE function. Then select the level at which you wish each move to be analysed and
then select the colour for which you wish the computer to analyse the game . Press GO to exit this mode.
The computer will start now with the analysis.
Note: The computer will analyse each move and send the results to the interface. You may stop the analysis by pressing
the GO key while the last move is being displayed. Now press LEVEL and then ANALYSE until [AnALY] is
shown on the LCD. In this way your game will not be lost in the game history and you will still be able to use the
TRACE FORWARD and TAKE BACK keys after you exit this function.
26. BOOK SELECT Key (BK)
This mode is used to tell the computer whether you wish to use just the normal built in opening book or if you wish to use
your own programmable opening book.
Refer to PRO-OP Book function for more information how to enter your book into the computer. Once you have entered
some moves into your PRO-OP Book, you may select the order in which the computer will scan through the two opening
books for its moves.
•The default mode is [nor] which means the computer will only look into its normal built in opening book.
•The second option shown as [Pro] on the LCD means the computer will only search the PRO-OP Book for its
opening moves and will ignore its normal built in opening book.
•The third option allows the computer to use both , the normal built in opening book and the user programmable
opening book. You may now choose between the option [nor Pro] or [Pro nor] . Selecting option [nor Pro] makes
the computer search the normal built in opening book first for its next move and only if it does not find a solution it
will search the user programmable opening book. Selecting [Pro nor] reverses the computer’s search.

17
VI. OPTION I/II KEYS
A. OPTION I KEYS
The following functions can be accessed by pressing OPTION-I/II once (the LCD will show [oPt 1]) followed by the
appropriate key.
Whenever this function is activated press GO to return to the playing mode.
Note: All functions marked "*" only apply when the SAPPHIRE II is connected to the NOVAG Distributor
and a PC.
27. *PRINT MOVES (Key A1)
This function determines to send moves to the interface whilst the game is in progress. The LCD will show [ intEr≡
≡≡
≡] when
moves will be sent to the interface.
28. *AUTO CLOCK (Key B2)
Activating this function will select AUTO CLOCK on or off. The LCD will show [autcl≡
≡≡
≡]or [autcl]. When AUTO
CLOCK is on, the computer will send the clock times of both players to the interface.
29. AUTOPLAY/DEMO (Key C3)
Pressing this key allows the user to select either mode.
−AUTOPLAY is shown on LCD as [auto ≡
≡≡
≡]and DEMO as [dEno ≡
≡≡
≡]. If either AUTOPLAY or DEMO mode is
selected, press the GO key and the computer will begin to play against itself from the current position and at the
preset level. All moves are executed automatically by the computer and shown on the LCD display. You may keep
track of the game by making the moves on the board without applying pressure.
−At the conclusion of the game the DEMO setting will allow the computer to play against itself continuously (at the end
of a game the computer will start with another new game), whereas in AUTOPLAY mode the computer will play up to
the conclusion of the game (1 game only).
−Press the GO key or NEW GAME key will exit AUTOPLAY or DEMO mode.
Note: Pressing any key during the AUTOPLAY / DEMO or REPLAY mode will cause the repeat cycle to end. To speed
up the opening during AUTOPLAY / DEMO or getting to a certain position in the game, press REPLAY and then
press TRACE FORWARD key up to the required position, then press the CLEAR key.
30. *HUMAN MODE (Key D4)
Pressing this key will show [hunAn] on the LCD and this means the format of the information sent to the interface is more
readable for the human player.
31. *VIDEO MODE (Key E5)
When this key is pressed, the LCD will show [VidEo] which means the format of information sent by the computer to the
interface is compatible with the NOVAG TV interface.
32. REPLAY (Key F6)
Using this function will cause the current game to be set back to the beginning and be played forward with each move
flashing 3 times as it is played. Press the CLEAR key to terminate this function.
Note: When using the REPLAY function in connection with the NOVAG interface, type [CtrlS] to pause, type CtrlS]
again to resume and type [CtrlC] to exit replay.
33. *PRINT GAME (Key G7) - (immediate action)
Pressing this key will send the current game to the interface.

18
34. *PRINT BOARD (Key H8) - (immediate action)
Pressing this key will send the current position to the interface.
35. *GAME RATING (Ver/Set Key)
By using this feature you can ask your NOVAG SAPPHIRE II to rate your game according to the FIDE ELO rating
system.
Press the OPTION I/II key once and then press the Ver/Set key to obtain the current rating.
The SAPPHIRE II will assign you with 1400 ELO points (shown on the LCD as [rt 1400]) to start with and your rating
will be adjusted whilst you are playing games.
To operate this function proceed as follows:
•To exit the RATING function: Press the GO key .
•To reset the RATING function to 1400 ELO points: Press the CLEAR key.
•To rate a game: Press the key with the Pawn symbol. A game can only be rated under the following conditions: the
SAPPHIRE II must have resigned or there must be a draw or mate condition, otherwise you will hear 3 beeps and the
[Error] sign will be displayed.
•To offer a draw : Press the key with the Knight symbol. The SAPPHIRE II will only consider a draw based upon
your current rating and score. You can only claim a game as a draw position after 20 moves have been played. The
LCD will show [rEJECt] if a draw is not accepted.
•Resign a game: Press the key with the Bishop symbol to ask the SAPPHIRE II to rate this game as a losing game.
Note: To qualify for a game rating the SAPPHIRE II must play one and only one side (black or white) and no moves
to be taken back are allowed.
The rating system used here is similar to the US Chess Federation two tiered formula. These first tier is suitable for new
players and enables rapid advancement.
The first tier formula:
Win: (((PELO x G) + (OELO + 400)) ÷ (G + 1))
Draw: (((PELO x G) - (OELO + 0)) ÷ (G + 1))
Loss: (((PELO x G) + (OELO - 400)) ÷ ( G + 1))
New players only stay in this tier for the first 20 games then they move up to the second tier which will stop the dramatic
changes and stand to settle down to the actual rating.
The second tier formula:
Win: (PELO - ((OELO - PELO) x .04) + 16)
Draw: (PELO - ((OELO - PELO) x .04) + 0)
Loss: (PELO - ((OELO - PELO) x .04) - 16)
Note: "PELO": stands for Players ELO.
"OELO": stands for Opponents ELO and
"G": stands for number of games played
B. OPTION II KEYS.
The following functions can be accessed by pressing OPTION-I/II twice followed by the appropriate key. Pressing this key
again within 2 seconds will toggle between OPTION-I or OPTION-II functions.
36. HASH TABLES (Key A1)
The default mode is [hASh≡
≡≡
≡] which means Hash Tables on.
Using Hash Tables is a technique which allows the computer to search much deeper into many positions, especially in the
end game.

19
For example the following well known end game position takes the computer about 28 seconds to find the correct solution
= move KB1!. With Hash Tables turned off this would take perhaps many hours to find!
-+-+-+-+
mk-+-+-+-
-+-zp-+-+
zp-+P+p+-
P+-zP-zP-+
+-+-+-+-
-+-+-+-+
mK-+-+-+-
37. SELECTIVE SEARCH (Key B2)
The default mode is [SEL≡
≡≡
≡]which means Selective Search ON. Normally the Selective Search allows the computer to find
combinations much faster than a Brute Force Search. Selective Search ON should play about 120 rating points stronger
than having Selective Search OFF.
38. PASSIVE BOOK (Key C3)
Turning on Passive Book [PASS≡
≡≡
≡] will make the computer prefer to play certain opening book lines that are more passive
in nature.
39. ACTIVE BOOK (Key D4)
Turning on the Active Book [Act≡
≡≡
≡] will make the computer prefer to play certain opening book lines which are more active
in nature. Both Active and Passive Book may be on at the same time!
40. OPENING BOOK (Key E5)
Turning off the opening book [booH] will disable both the normal built in opening book and the PRO-OP book.
41. LEARN (Key F6)
Turning Learn mode on [LEArn≡
≡≡
≡]will allow the computer to learn from some of its mistakes. When the computer plays a
move in which it becomes worse off, it will remember the position and how deeply it searched into the position. When it
comes to this position again it will remember that things turned out badly and will try and find a different move to play.
To clear all remembered positions, press the CLEAR key while the LCD shows [LEArn≡
≡≡
≡]. The display will then show
[cLEAr] to indicate that you have cleared the current learning table.
42. EXTENSIONS (Key G7)
The chess playing program in your computer uses a number of intelligent heuristics to direct the search to look deeper into
relevant positions and to try to resolve tactical skirmishes. Turning off this mode will disables the Extension possibility.
This makes the search faster in most positions but means the computer may miss some important tactical threat.
43. *TEST (Key H8)
This function is mainly provided for the authorised NOVAG service technician.
Pressing the TAKE BACK key twice will cause the internal test to be performed which checks the hardware of your
computer and reports any problems to the interface. Do not be alarmed when the LEDs and LCD behave erratically for a
few seconds while the tests are being performed. This is because all the memory is being tested which affects the operation
temporarily of the LEDs and LCD.
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