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Subject: Is my branching factor normal ?

Author: Mathieu Pagé

Date: 19:31:54 07/03/04


Hi !

I was wondering, what is a normal branching factor for my program... it use
AlphaBeta, iterative deepening, a transposition table and an aspiration search.
it's evaluation function is blindly fast (and bad). For the starting position I
got branching factor of less thant 2 (time to depth N+1 / Time To depth N).

is this normal ?

<output>
MatMoi version: 5.12.2
Creer par Mathieu Page
Date: Jun 12 2004 19:36:41

>st 60
>gonow
              depth   time  score   variation
                1->   0.09   0.00   a2a3
                2->   0.13   0.00   a2a3 a7a6
                3->   0.17   0.00   a2a3 a7a6 a3a4
                4->   0.20   0.00   a2a3 a7a6 a3a4 b7b6
                5     0.24   1.00   b2b3 a7a6 c1a3 b7b6 a3e7
                5->   0.28   1.00   b2b3 a7a6 c1a3 b7b6 a3e7
                6->   0.66  -1.00   b2b3 b7b6 b3b4 c8b7 b4b5 b7g2
                7->   1.27   1.00   b2b3 a7a6 a2a3 b7b6 c1b2 c7c6 b2g7
                8->   5.38  -1.00   b2b3 a7a6 b3b4 b7b6 a2a3 e7e6 b4b5 a6b5
                9->  12.55   1.00   b2b3 a7a6 b3b4 b7b6 e2e3 c7c6 e3e4 d7d6 f1a6

               10    59.42   4/20   d2d3
                time: 60.05 n: 57048239 nps: 950059

        MatMoi joue: b2b3

=>+-X-+---+---+---+---+---+---+-X-+
8 |=R=|=N=|=B=|=Q=|=K=|=B=|=N=|=R=|
  +---+---+---+---+---+---+---+---+
7 |=P=|=P=|=P=|=P=|=P=|=P=|=P=|=P=|
  +---+---+---+---+---+---+---+---+
6 |   | . |   | . |   | . |   | . |
  +---+---+---+---+---+---+---+---+
5 | . |   | . |   | . |   | . |   |
  +---+---+---+---+---+---+---+---+
4 |   | . |   | . |   | . |   | . |
  +---+---+---+---+---+---+---+---+
3 | . | P | . |   | . |   | . |   |
  +---+---+---+---+---+---+---+---+
2 | P | . | P | P | P | P | P | P |
  +---+---+---+---+---+---+---+---+
1 | R | N | B | Q | K | B | N | R |
  +-X-+---+---+---+---+---+---+-X-+
    a   b   c   d   e   f   g   h

>
</output>



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