9
Sudden Death Level SD 1 - SD 8
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 chess computer 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.
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. 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:
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!
How to select a Level
To select a level you must first enter the level setting mode: press the MENU button on the right
hand side, tap square A8 with the function access piece (if a chess piece is already standing on
Summary of Contents for Citrine
Page 1: ...NOVAG citrine INSTRUCTION...
