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Subject: Re: Branching factor, etc

Author: Uri Blass

Date: 08:46:29 08/30/02

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On August 30, 2002 at 11:24:50, David Hanley wrote:

>Dan, i really appreciate your help with this.
>
>I should have been more clear.  My sorted search from the opening position was
>an eight ply search.  Here's a six ply search:
>
>Score: -55
>Searched 28744 nodes
>Got 8063 hash hits (28 percent hits)
>There were 16100 quiesce nodes
>The pawn hash contains 2833 entries
>Branching factor is 4.827881
>
>So, that's 28744 total nodes, and 12644 non-quiesce nodes.
>
>According to your list, a six ply search from the opening for the other programs
>reports node counts of:
>
>yace : 34,240
>glc-218 : 12,970
>gnu: 17,175
>phalanx: 9,829
>genesis 40,582
>
>I'm not sure what to think.  Perhaps yace and genesis are counting all nodes,
>and glc,gnu,and phalanx are reporting non-quiesce nodes.

I think that everybody counts all nodes but there are programs that do more
extensions.

Here is the debug file of movei00_76 in the initial position.
43125 nodes to finish depth 6 but I guess my numbers are better at bigger
depthes

Movei prints number of nodes every end of iteration and
every time that it gets a score for a move or fail high.

13510 <first : 1 35 0 20 b1c3
13510 <first : 2 9 0 44 b1c3 b8c6
13510 <first : 2 10 0 65 d2d4
13510 <first : 2 25 0 85 d2d4 b8c6
13510 <first : 2 26 0 120 e2e4
13510 <first : 2 30 0 140 e2e4 b8c6
13510 <first : 2 30 0 160 e2e4 b8c6
13510 <first : 3 35 0 353 e2e4 e7e5 b1c3
13510 <first : 3 35 0 526 e2e4 e7e5 b1c3
13510 <first : 4 8 0 778 e2e4 e7e5 d2d4 b8c6
13510 <first : 4 8 0 1607 e2e4 e7e5 d2d4 b8c6
13570 <first : 5 32 6 3703 e2e4 b8c6 b1c3 e7e5 g1f3
13570 <first : 5 33 6 6030 g1f3
13570 <first : 5 37 6 7144 g1f3 e7e6 e2e4 f8b4 f1b5
13570 <first : 5 37 6 7145 g1f3 e7e6 e2e4 f8b4 f1b5
13620 <first : 6 4 11 16748 g1f3 g8f6 e2e3 d7d5 f1b5 c7c6 b5d3
13680 <first : 6 5 17 18062 b1c3
13840 <first : 6 4 33 43125 g1f3 g8f6 e2e3 d7d5 f1b5 c7c6 b5d3
14060 <first : 7 28 55 71346 g1f3 d7d5 d2d4 e7e6 c1f4 f8b4 c2c3 b4e7
14340 <first : 7 28 83 105632 g1f3 d7d5 d2d4 e7e6 c1f4 f8b4 c2c3 b4e7
14830 <first : 8 8 132 168990 g1f3 b8c6 b1c3 d7d5 e2e4 d5e4 c3e4 g8f6
15220 <first : 8 9 171 216766 b1c3
16970 <first : 8 8 346 436907 g1f3 b8c6 b1c3 d7d5 e2e4 d5e4 c3e4 g8f6
19720 <first : 9 17 621 771256 g1f3 g8f6 d2d4 d7d5 e2e3 e7e6 f3e5 f8d6 f1b5 b8d7
20760 <first : 9 18 725 902784 b1c3
23010 <first : 9 18 950 1191872 d2d4
25600 <first : 9 26 1209 1503069 d2d4 g8f6 c1f4 b8c6 e2e3 d7d5 f1b5 c8f5 b5c6
b7c6 g1f3
26690 <first : 9 26 1318 1638196 d2d4 g8f6 c1f4 b8c6 e2e3 d7d5 f1b5 c8f5 b5c6
b7c6 g1f3
36140 <first : 10 18 2263 2759897 d2d4 d7d5 b1c3 g8f6 c1g5 b8c6 e2e3 c8g4 g1f3
e7e6
47290 <first : 10 18 3378 4112355 d2d4 d7d5 b1c3 g8f6 c1g5 b8c6 e2e3 c8g4 g1f3
e7e6
91510 <first : 11 29 7800 9542537 d2d4 e7e6 e2e4 d7d5 b1c3 d5e4 c3e4 d8d5 f1d3
b8c6 c2c3
108200 <first : 11 29 9469 11546936 d2d4 e7e6 e2e4 d7d5 b1c3 d5e4 c3e4 d8d5 f1d3
b8c6 c2c3

Uri



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