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Subject: Re: QNodes, Lead Nodes and Best Practice?

Author: Dan Homan

Date: 09:02:31 06/14/04

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When I shutoff the pruning from the swap function, I forgot to shut off the swap
function itself.  When I do that, the results are the same, but the NPS are a
bit higher....

 12.  -2.48     3  3352392   1. ... hxg5 2. Bb3 Be6 3. Rac1 Rc6 4. Ba4 Rcc8 5.
Rxc8 Rxc8 6. Kh1 Rc7 7. Rd1 Bd7
 12.  -2.48     4  3835796   1. ... hxg5 2. Bb3 Be6 3. Rac1 Rc6 4. Ba4 Rcc8 5.
Rxc8 Rxc8 6. Kh1 Rc7 7. Rd1 Bd7

node_count = 4658176 quiescent nodes = 1456022 eval_count = 4321211
hash hits = 150790 hash moves = 50642 pawn hash hits = 4222169
node_rate = 931635 null cuts = 278112 exten = 108187 int_iter = 7970
egtb_probes = 0 egtb_hits = 0 fail_high(%) = 92

You can see that the qsearch is still 31 % of the search tree... much more than
the 7% when swap pruning is turned on.

• Re: QNodes, Leaf Nodes and Best Practice? Steve Maughan 02:28:26 06/15/04
  • Re: QNodes, Leaf Nodes and Best Practice? Dan Homan 04:04:54 06/15/04
    • Re: QNodes, Leaf Nodes and Best Practice? Steve Maughan 04:48:26 06/15/04

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