8
•
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.
Содержание sapphire II
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