6
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.
