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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 opposite side of the board, the chess computer will allow you to promote or 
underpromote it to any desired piece. 
 
As soon as this happens, the rank and file LEDs of the square flash and the word "

Pro

 

?

" will be shown on the display. 

You can now choose the pieces you want to promote to by pressing the respective 

Piece Symbol Key

. The LEDs will 

disappear and the computer will start computing its counter-move. 
 
If a computer pawn reaches the opposite side of the board, the computer indicates on the LCD display into which piece the 
pawn will be promoted/underpromoted. 
 
The computer also accepts/executes pawn promotions in set-up board positions. 
 

g) 

Stalemate and Draw 

• 

The computer announces a Stalemate by the word "

dr StL

" on display. 

 
The EMERALD CLASSIC 

plus

 recognizes the following special draw conditions as stated by the World Chess 

Federation: 

• 

Draw due to insufficient material is announced by the word "

dr in5

" on display. 

• 

50 moves without a capture or a pawn moves is displayed with "

dr 50

". 

• 

And 3 times repetition of position is displayed with "

dr 3rd

". 

 

h) 

Check and Checkmate 

Check announcements will be shown as a "

+

" sign on the right corner of the LCD display. If this check is the last check of 

the game i.e. checkmate, "

MATE

" will appear on the display along with the last move of the game and the winning color. 

 

i) Mate 

Announcement 

The EMERALD CLASSIC 

plus

 will always announce mate if it sees it and will show the numbers of moves to mate on 

the LCD. 

 

Example:  "

n 4

" means Mate-in-4. 

 

j) Resignation 

If the computer believes its position is hopeless, it will announce "

rESiGn

" for resign. If you wish you might finish the 

game, however note, the computer will only once announce its resignation. 
 

Note: 

If either side's time runs out, the LCD display will flash "

FLAG

". You may continue the game by entering the next 

move. 

 

Summary of Contents for EMERALD CLASSIC plus

Page 1: ...1 NOVAG EMERALD CLASSIC plus INSTRUCTION...

Page 2: ...ion IV SPECIAL FUNCTIONS 1 NEW GAME Key 2 SET LEVEL Key 3 SOLVE MATE FUNCTION 4 GO KEY 5 RANDOM Key 6 REFEREE Key 7 HINT Key 8 TRAINING Key 9 TAKE BACK Key 10 TRACE FORWARD Key 11 CHANGE COLOR Key 12...

Page 3: ...ndication for the color 5 Symbol for En Passant 2 6 character alphanumeric display 6 Symbol for Stalemate Draw 3 Separation for time indication 7 Symbol for Check Checkmate 4 Symbols for chess pieces...

Page 4: ...se the adaptor specified for your computer The use of any other adaptor automatically invalidates the warranty Note Make sure you first connect the adaptor with the computer before you plug it into th...

Page 5: ...is piece and complete the move as if making this move for yourself and put down the piece on the square indicated Please note to remove any captured pieces for the computer without applying any pressu...

Page 6: ...ecutes pawn promotions in set up board positions g Stalemate and Draw The computer announces a Stalemate by the word dr StL on display The EMERALD CLASSIC plus recognizes the following special draw co...

Page 7: ...corresponding chess board square A1 A2 to H8 On the LCD the chosen level setting will be displayed To confirm the level setting and exit this mode press the GO key For example if you wish to set level...

Page 8: ...cified time the game will be declared lost Level Description Tr 1 40 moves in 4 min 2 40 moves in 5 min 3 40 moves in 8 min 4 40 moves in 10 min 5 40 moves in 15 min 6 40 moves in 20 min 7 40 moves in...

Page 9: ...SECTION Sd 1 Sd 16 On the Sudden Death Levels the computer will try to finish the game within the given time you have set The time the computer uses for each move depends on the time already used so...

Page 10: ...ey If the search is halted the computer makes the move it currently thinks is the best On this level it might be very interesting to watch the computer analyze complicated positions four hours or even...

Page 11: ...e mate in 4 problem 5 Solve mate in 5 problem 6 Solve mate in 6 problem 7 Solve mate in 7 problem 8 Solve mate in 8 problem Example To solve a Mate in 3 problem setup the chess positions on your chess...

Page 12: ...8f7 h1f1 4 f7g6 f1g1 5 g6f6 g1f1 6 f6g5 f1g1 7 e4g4 EG 2 d5 OUTSIDE SQUARE This position comes from the famous book by Grand Master Ruben Fine Basic Chess Endgames fig 51 The position demonstrates how...

Page 13: ...l mode Ver will appear on the display Place the chess figures without applying pressure on the chessboard as shown on the diagram below and verify the position as described in section IV 13 Press now...

Page 14: ...Take back this wrong move by applying pressure on the respective squares and try again Solution 1 e2d2 d8e8 2 d2c3 e8d7 3 c3d3 d7e6 4 d3e4 e6f6 5 e4d5 f6f7 6 d5c5 f7e6 7 c5b5 e6d5 8 b5a5 d5c5 9 a5a6...

Page 15: ...ITION EG 8 Press SET LEVEL key once or twice to select LEVEL GROUP II and then press square G8 Press GO to exit the level mode Ver will appear on the display Place the chess figures without applying p...

Page 16: ...e7g6 9 g7g6 g3h4 10 g6g4 Gn 3 Qxc6 and Ba6 MATE A nice combination by Esteban Canal White sacrifices both Rooks to allow a pretty Queen sacrifice ending in checkmate Solution 1 a3b4 a5a1 2 e1d2 a1h1 3...

Page 17: ...n 7 TORRE QUEEN SACRIFICE Actually this brilliant series of Queen offers was made by the American amateur E B Adams against the Mexican Grandmaster Carlos Torre The combination exploits the weakness o...

Page 18: ...ution you will see no nE on display Whilst the computer is searching it will show the main variations that it is presently considering and will rotate a variety of information on the LCD display in th...

Page 19: ...shown on display You can accept any suggested move or may make a move of your choice even whilst a HINT is being displayed If you accept the suggested move simply press GO and the computer will immedi...

Page 20: ...of the pieces all prior moves will be deleted and you may not TAKE BACK moves before the change of color or position If no moves are in the game history the LCD will show bEG in 10 TRACE FORWARD Key...

Page 21: ...on e g play without both Kings or with more than one King for each color 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 th...

Page 22: ...CE FORWARD to replay through the entire game Should you enter a move for your color you will erase all of the game history and the computer will treat this as a new game 16 SOUND KEY The EMERALD CLASS...

Page 23: ...e 18 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 time of the side to move on di...

Page 24: ...r Dirt or dust can be removed with a soft cloth Do not use any chemical solvents or water on the set Any damage caused by their use invalidates the warranty Always keep the computer in a dry and cool...

Page 25: ...response on that particular square you will have to send the computer in for service C Technical Data and Features Progamme Size 32K Byte ROM Read Only Memory 1K Byte RAM Random Access Memory System...

Page 26: ...s would be the computer s reply INFO Display Score for Black currently being computed INFO Display Number of half moves the computer has searched so far INFO Display Out of 43 variations there are sti...

Page 27: ...ET UP Function is selected and you may remove or add any chess piece to make up a new position The use of the CLEAR BOARD key is confirmed A Black Rook is set up on square a8 by using the SET UP Funct...

Page 28: ...down to zero time Fixed Depth playing level 2 is selected and now effective The computer will only analyze every move for only 2 half moves Analysis level 3 is selected and is now effective Easy level...

Page 29: ...any square along the same rank file or diagonal on which it stands except as limited by Article I 3 3 ROOK The Rook can move to any square along the same rank or file on which it stands except as lim...

Page 30: ...an standard which is guaranteed by the importer whose name is marked on the enclosed warranty card Not suitable for children under 36 months due to inclusion of small parts NOVAG PERFECT TECHNOLOGY LT...

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