7
LEVEL CHART
Level
Square
Time Control
Level
Square
Time Control
TR
1
a1
40 moves in
5 minutes
AN
1
e1
9 ply search
2
a2
40 moves in 15 minutes
2
e2
10 ply search
3
a3
40 moves in 30 minutes
3
e3
11 ply search
4
a4
40 moves in 60 minutes
4
e4
12 ply search
5
a5
40 moves in 90 minutes
5
e5
13 ply search
6
a6
40 moves in 100 minutes
6
e6
14 ply search
7
a7
40 moves in 2 hours
7
e7
15 ply search
8
a8
40 moves in 2.5 hours
8
e8
Infinite search
1 ply search with limited
capture search:
AT
1
b1
2 seconds per move
EA
1
f1
1 ply + 2 captures
2
b2
5 seconds per move
2
f2
1 ply + 3 captures
3
b3
10 seconds per move
3
f3
1 ply + 4 captures
4
b4
15 seconds per move
4
f4
1 ply + 5 captures
5
b5
30 seconds per move
5
f5
1 ply + 6 captures
6
b6
1 minute per move
6
f6
1 ply + 7 captures
7
b7
2 minutes per move
7
f7
1 ply + 8 captures
8
b8
3 minutes per move
8
f8
1 ply + 9 captures
SD
1
c1
game in 3 minutes
BE
1
g1
2 ply + 2 captures
2
c2
game in 5 minutes
2
g2
2 ply + 3 captures
3
c3
game in 10 minutes
3
g3
2 ply + 4 captures
4
c4
game in 15 minutes
4
g4
2 ply + 5 captures
5
c5
game in 30 minutes
5
g5
2 ply + 6 captures
6
c6
game in 1 hour
6
g6
2 ply + 7 captures
7
c7
game in 1.5 hours
7
g7
2 ply + 8 captures
8
c8
game in 2 hours
8
g8
2 ply + 9 captures
FD
1
d1
1 ply search
IN
1
h1
mate in 1
2
d2
2 ply search
2
h2
mate in 2
3
d3
3 ply search
3
h3
mate in 3
4
d4
4 ply search
4
h4
mate in 4
5
d5
5 ply search
5
h5
mate in 5
6
d6
6 ply search
6
h6
mate in 6
7
d7
7 ply search
7
h7
mate in 7
8
d8
8 ply search
8
h8
mate in 8
Description of level time controls:
•
Tournament Level TR 1 - TR 8
For tournament time controls. All moves are pre-set which have to be played within a fixed time, e.g. 40 moves in 120
min. (level 8 is the strongest). If you or the computer exceeds the specified time control, the game will be declared lost.
•
Average Time Level AT 1 - AT 8
These levels are to be used for casual play. They allow you to enter the average response time per move for the
computer. The computer tends to play faster during opening and end games.
•
Sudden Death Level SD 1 - SD 8
For play to the finish. 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 SAPPHIRE II 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.
