Hi Eelco!
Thanks for the infos, latest SugaR struggles even with switched off nullmove, stopped after 5 minutes in depth 53.
This Position is good for testing save and reload of hash too.
Here is Daniel Jose's SF after restart of GUI and reload of 2G of already "knowing" hash:
8/8/8/1B6/6p1/8/4KPpp/3N2kr w - - 0 1
Analysis by Stockfish 190817 64 POPCNT:
1.Kd3 Kf1 2.Kd2+ Kg1 3.f4 g3 4.Ld7 Kf1
+- (#11) Tiefe: 7/8 00:00:00 3kN
...
1.Kd3 Kf1 2.Kd2+ Kg1 3.f4 g3 4.Ld7 Kf1 5.Lh3 Tg1 6.Lg4 Th1 7.Le2+ Kg1 8.Sc3 Kf2 9.Se4+ Kg1 10.Sg5 Kf2 11.Sh3#
+- (#11) Tiefe: 101/22 00:00:05 178MN
And here after "reload" of 4G, that were "knowing" already before too, but were "empty" again obviously after giving "SaveHashtoFile" and "LoadHashfromFile" command (with 4G shown in Win Explorer correctly yet too):
8/8/8/1B6/6p1/8/4KPpp/3N2kr w - - 0 1
Analysis by Stockfish 190817 64 POPCNT:
1.f3 g3 2.f4
= (0.00) Tiefe: 7/4 00:00:00 13kN
...
1.f3 g3 2.f4
= (0.00) Tiefe: 83/4 00:01:30 4582MN
Question remains, if hash bigger than 2G get deleted already by "Save" or later on by "Load".
Anyhow to me it seems like a problem of communication between engine and GUI, don't you think so too
Peter.