Search found 58 matches

by jstanback
Sun Sep 15, 2019 2:50 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.75 by John Stanback released ...
Replies: 16
Views: 1385

Re: Wasp 3.75 by John Stanback released ...

Thanks Ferdy. I'm working on fixing this for the next release.

John
by jstanback
Sat Sep 14, 2019 10:17 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.75 by John Stanback released ...
Replies: 16
Views: 1385

Re: Wasp 3.75 by John Stanback released ...

I made a change where if the first move at the root fails low several times (score has dropped about 2 pawns or more) then I accept that score for the first move, set a flag, and search the remaining moves to see if one of them is better. If not, then I repeat the iteration. Looks more like a hack ...
by jstanback
Sat Sep 14, 2019 10:09 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.75 by John Stanback released ...
Replies: 16
Views: 1385

Re: Wasp 3.75 by John Stanback released ...

Tried testing it with UCI_Elo 1500 at TC 60s+100ms and it losses on time forfeit. Sample games: Hi Ferdy, Thanks for bringing this to my attention. Wasp handles the UCI_Elo command by reducing the nodes/second. At 1500 Elo the target search rate is only about 24 nodes/second. In my time handling ro...
by jstanback
Fri Sep 06, 2019 10:25 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.75 by John Stanback released ...
Replies: 16
Views: 1385

Re: Wasp 3.75 by John Stanback released ...

Hi Frank! Thanks for pointing out these games to me. I don't spend nearly enough time reviewing games. In the Hakkapeliitta-Wasp game, after white played 20. Qh6, Wasp thinks Qc7 is a draw until it fails low at depth 23 (in about 6 sec). Wasp continues to reduce alpha and re-search many times until ...
by jstanback
Sat Jul 20, 2019 5:00 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Feature score use in search
Replies: 5
Views: 644

Re: Feature score use in search

I forgot to mention that my eval hash table is separate from my main hash table and it includes the danger[] term in addition to the overall evaluation.

John
by jstanback
Sat Jul 20, 2019 4:57 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Feature score use in search
Replies: 5
Views: 644

Re: Feature score use in search

In Wasp I have an evaluation term called danger[side] which is used in the Search() routine to restrict pruning. The danger[] term gets increased by some amount for features such as a piece attacked by enemy pawn or a pawn/piece which is attacked and undefended, enemy having a free pawn on 5th rank ...
by jstanback
Thu Apr 11, 2019 2:35 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.60 available (for DGT Pi too, for chess computer lovers)
Replies: 22
Views: 5587

Re: Wasp 3.60 available (for DGT Pi too, for chess computer lovers)

Hi Ted, I agree. Wasp is 3028 on the latest CCRL list, I have it at 2845 on my Raspberry Pi 3b+. The wasp.uci code shows the top level at 2654 191 elo lower. So 1556 could be 1765, unless there’s an equation to work out the levels difference rather than deduct 191 throughout. Al. Here are the equat...
by jstanback
Sat Feb 16, 2019 9:11 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.50 by John Stanback available!
Replies: 32
Views: 5690

Re: Wasp 3.50 by John Stanback available!

Hi Guenther, The syntax for UCI commands should be setoption name Hash value 512 and go movetime 15000. I ran Wasp 3.5 for 60s on the position after move 18. Bd3 with 512M Hash. Wasp switched from a5 after about 1.3 seconds. I don't know what happened in the game, but it could be whatever happened t...
by jstanback
Sat Feb 16, 2019 4:03 pm
Forum: Computer Chess Club: General Topics
Topic: Wasp 3.50 by John Stanback available!
Replies: 32
Views: 5690

Re: Wasp randomizing?

Thanks Frank for hosting Wasp on your website and for testing the beta versions! Later today I will send Frank a Linux compile for older CPU's and also a RPi-3b compile. John While doing some tests with various opponents vs. LC0 with a dist. NN11258, I noticed an astonishing blunder in a Wasp game ...
by jstanback
Mon Jan 14, 2019 12:05 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Troubled Waters 4CPU
Replies: 16
Views: 2069

Re: Troubled Waters 4CPU

Thanks Graham!