peter wrote: ↑Thu Aug 26, 2021 10:07 am
Thanks for the new version!
To me SlowChess has the best mate- search besides the specialised programs like Chest and Gustav. As for long- line- mates it has replaced SF Matefinder in my usage at forward- backward- analysis of such puzzles and positions regards
I'm glad some people are noticing Slow is good at mate-finding. There are a few special things it does like priority for keeping mates in transposition table and near leaves of searches it doesn't prune mate threats or dangerous checks. I used to test the mate-finding more than I do now. I might start testing stuff like mate-finding again as I think I'm reaching limits in strength increase. (I can probably catch up to Stockfish 11 in strength, but current SF is in another league entirely than I can reach.)
Thanks.
I would have probably waited longer before releasing but I've wanted to fix the FRC play for a long while and this version should.
CMCanavessi wrote: ↑Thu Aug 26, 2021 5:17 pm
I noticed that "SyzygyProbeDepth" default value was changed from 3 in 2.6 to 2 in 2.7. Why was this changed and how does this affect gameplay while using 6-men Syzygy?
It probably makes no noticeable difference. I tested no depth limit on Syzygy probing in main search and everything ran fine, so I was thinking of removing the setting entirely, but I have an SSD so maybe on a slow hard-disk it might be needed.
While the gambit list performance is a bit disappointing, with different openings, opponents and random variation it's on the lower end of expectations but not surprising. I should try testing gambit openings too next time.
What I do wonder about is the strong performance of Stockfish in your lists. Does your test machine support AVX2? If not I suppose that's a large part of it. (In my personal tests Slow 2.7 narrowly beat Stockfish 10 in 3 out of 4 standard opening books I tried, in FRC it's still quite a bit weaker though even with the improvement in 2.7)