Search found 40 matches

by THyer
Sun Feb 12, 2017 6:35 pm
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

Can't you switch off TBs simply by not providing the Syzygy path?
by THyer
Sun Feb 12, 2017 1:45 am
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

Thanks, Michael.
by THyer
Sat Feb 11, 2017 8:29 pm
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

Roc 0.3 has been released. There are now three binaries:

x64 (without HNI)
x64_HNI
x86 (32-bit; has no tablebase support)
by THyer
Fri Feb 10, 2017 9:46 pm
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

Here is what I hope Wobble might accomplish. Engines work by iterative search, repeating the same search at increasing depth until they have used the allotted time. Each of these searches is a lot like its predecessor. A risk is that one quiet move, chosen at a shallow depth, could produce decent re...
by THyer
Fri Feb 10, 2017 4:37 pm
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

If you post or send me FEN and solutions for your test positions, I'll at least add them to the test cases list.
by THyer
Fri Feb 10, 2017 12:40 am
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

"Wobble" is an idea I am experimenting with, to change the move ordering a little bit based on the depth. The idea is that each iterative search will have a chance to find a move that the previous iteration missed. I hope this might be useful at long time control. If you are able to test Wobble=1 ag...
by THyer
Thu Feb 09, 2017 5:21 pm
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: "Roc" - it is an improvement !!

Thanks. This is very good news; it exceeds my expectations.
by THyer
Thu Feb 09, 2017 12:35 am
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

I am testing that now; don't know how much Elo impact it will have.

At first I will be releasing only binaries for Roc with TB support. I used Basil Falcinelli's Fathom code, but I had to mess with it to get a Windows build.
by THyer
Wed Feb 08, 2017 4:06 pm
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

Eric's point is valid. I think Roc is slightly stronger than Gull, but not by much. The tests linked show a possible 40 Elo, but I expect less than that. However, Roc has room to grow. I am making some improvements, and if I can find collaborators to help gather data I will also begin tuning the new...
by THyer
Wed Feb 08, 2017 3:02 am
Forum: Computer Chess Club: General Topics
Topic: New engine "Roc"
Replies: 93
Views: 29916

Re: New engine "Roc"

The hash table implementation is unchanged from Gull.