5
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]
.
Содержание sapphire II
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