failsoft PVS with tt, pseudo code ?

[MahmoudUthman]

I tried writing it before based on this http://chessprogramming.wikispaces.com/ ... Aspiration but for some reason it was slower than a normal fail-hard alpha beta function , so maybe I implemented it wrong , could someone provide a pseudo code for fail-Soft PVS separated into two functions (PV-Search , ZW-Search) and the TT usage in each of them ?

[smatovic]

you can take a look into the search routine of the CPW engine,

http://chessprogramming.wikispaces.com/ ... ine_search

search for "PVS" and "is_pv".

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Srdja