when/Where should check extension be applied ?

[MahmoudUthman]

Code: Select all

search()
{
if(draw()) return draw_Value;
if&#40;depth<1 ) return qsearch&#40;);
probeTT&#40;)
TTCuts
Reverse Futility Pruning
Null Move Pruning

MoveLoop
&#123;&#125;
&#125;

should I extend At the top of the search before doing anything other than draw detection ?
or should I extend After TTCuts ? or maybe Null Move pruning , etc. ?

*by the way I only do reverse futility , nulls & non exact ttcuts in non pv nodes .

[smatovic]

imo it would make sense to extend before entering qsearch,
not sure about how the extended depth effects on your ttcuts and nullmove.

--
Srdja