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Subject: Analyzing in Rebel 9

Author: Ernst Walet

Date: 13:58:25 01/01/98


I have analyzed the end position of the second game of the rematch
between Kasparov and Deep Blue with Rebel9 and had some strange results.

When i use power analyze on Qb6xc6 and Qb6-e3 separately it gives the
following score on the PV:

PLY            Qb6xc6       Qb6-e3

10             -0.82        -2.34
11             -1.00        -1.76
12             -1.23        -1.52
13             -1.37        -1.41
14             -1.38        -1.18
15             -1.56        -1.76

When i use power analyze on Qb6xc6 and Qb6-e3 together it gives the
following score on the PV:

PLY            move

10             Qb6xc6       -0.81
11             Qb6xc6       -1.00
12             Qb6xc6       -1.23
13             Qb6xc6       -1.37
14             Qb6xc6       -1.43
15             Didn't wait because i expected it to switch PV on ply 14

With normal analyze it swiches from Qb6xc6, score -1.56 to Qb6-e3,score
-1.53 on the 15th ply.

Why not the same score and ply depth switching between these two moves?

has it to do with hash-tables?

beste regards, Ernst.



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