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Stockfish TCEC6 PA_GTB

Posted: Wed Aug 07, 2024 8:49 am
by Peter
Hi!
Loved this feature of persistent analysis already way back then, had the engine from here

https://www.open-chess.org/viewtopic.php?p=20589#p20589

It came with a text called About Persistent Hash, lately I read it again and gave this one part of it a try, a hadn't done so far:
COMMAND LINE OPTIONS:
- "importepd": typing 'importepd <filename.epd>' will attempt to import positions and analysis from EPD files. The EPD files must contain the following fields for each record: 'bm' (best move), 'ce' (centipawn evaluation) and 'acd' (analysis count depth). A final argument of 'noce' can be used to indicate that 'ce' fields may not be present -- if they are missing for a particular record, the record will be scored "Wins" for the side to move. EPD moves are always imported as Root node analysis.
Tried with shortest syntax and argument noce at the end of .epd- string. That is answered in console like this_
info string Persistent Hash imported 0 records
with e.g.

1B1r4/rp2npkp/2b1pbp1/1qp5/nPN1R3/1P1P1QP1/2P2PBP/5R1K w - - bm Qxf6+; ce 800; acd 35;

instead:
info string Persistent Hash imported 1 records
Yet I don't see any effect in analysis- output of the so created and by the engine used .hsh- file.
Does anybody have any experience with this kind of feature, which could give big ease to let engine learn from .epd, couldn't it?

Many thanks in advance and best