Search found 354 matches

by adams161
Sat Mar 09, 2019 1:07 am
Forum: Computer Chess Club: General Topics
Topic: OpeningTree released for first time on Android - has stockfish and open PGN and a book
Replies: 10
Views: 738

Re: OpeningTree released for first time on Android - has stockfish and open PGN and a book

So far i've got three of these and i've updated. Will look at the remainder when i have more time. The PGN file that could not be opened can now be opened. Was a problem in how we parsed comments that contained [. In settings there is an on/off switch for "Score as White". If off, score in analysis ...
by adams161
Thu Mar 07, 2019 11:37 am
Forum: Computer Chess Club: General Topics
Topic: OpeningTree iOS accessible to the blind
Replies: 0
Views: 102

OpeningTree iOS accessible to the blind

This is what you want from every customer when you update: Last midnight your update appeared! And it was no evil spell, only good news! We gave a way to use the navigation arrows which were not showing on Voice Over a way to be used. He continues: Our patch works perfectly good, and your options ar...
by adams161
Thu Mar 07, 2019 10:42 am
Forum: Computer Chess Club: General Topics
Topic: multi PV mode
Replies: 8
Views: 413

Re: multi PV mode

Classical chess engines like Stockfish or Komodo use Alpha Beta search/pruning. This means rather than do straight min max they prune or cut parts of the tree that are second best to the best move and do not return a true score for the second best move. This means After a single search the score is ...
by adams161
Thu Mar 07, 2019 1:34 am
Forum: Computer Chess Club: General Topics
Topic: multi PV mode
Replies: 8
Views: 413

Re: multi PV mode

A PV is a Principal Variation. Engine may search depth 20 and return a score of +1.00 i.e. i'm one pawn up and the moves that it found that got that score are something like Nf3 Nc6 d5 Qxd3 etc. Multi PV says Ok I got your PV and I know you found the best move to be in this example Nf3 but if you co...
by adams161
Thu Mar 07, 2019 12:50 am
Forum: Computer Chess Club: General Topics
Topic: OpeningTree released for first time on Android - has stockfish and open PGN and a book
Replies: 10
Views: 738

Re: OpeningTree released for first time on Android - has stockfish and open PGN and a book

I'll look into the 2 bugs and 3 suggestions. The bug in PGN reading i figure will have to wait till I can get to it. I did save the file. It appears to be a heavily sort of formatted PGN file that may be confusing the parser. In multipv mode, align the multipv score and pv properly, as in the image....
by adams161
Sun Mar 03, 2019 10:32 am
Forum: Computer Chess Club: General Topics
Topic: OpeningTree released for first time on Android - has stockfish and open PGN and a book
Replies: 10
Views: 738

Re: OpeningTree released for first time on Android - has stockfish and open PGN and a book

I had to do an update today to add back an option in settings to change to 32 bit stockfish. If the engine doesn't start i print i the analysis view to go into settings and try the 32 bit. The problem is devices can incorrectly report they support 64 bit. My one friend has a Samsung S8. You'd expect...
by adams161
Fri Mar 01, 2019 11:02 am
Forum: Computer Chess Club: General Topics
Topic: playwitharena.com domain renewed
Replies: 5
Views: 745

Re: playwitharena.com domain renewed

The data failed a simple test. Today is March 1st and the web site while returning an error is still up. I'm not an expert on this but if you don't pay your domain you should not be able to get to playwithareana.com I do get to it but with an error.
by adams161
Fri Mar 01, 2019 10:55 am
Forum: Computer Chess Club: General Topics
Topic: playwitharena.com domain renewed
Replies: 5
Views: 745

Re: playwitharena.com domain renewed

This was the fifth comment int the thread Arena web site down greater than 48 hours. Re: Arena website down >= 48 hrs Post by tmokonen » Sun Feb 24, 2019 8:42 pm A WHOIS lookup says that the playwitharena.com domain expires on February 27, 2019. I'm a programmer and check data keep seeing around 2-1...
by adams161
Fri Mar 01, 2019 9:01 am
Forum: Computer Chess Club: General Topics
Topic: Artificial intelligence 2019
Replies: 24
Views: 1471

Re: Artificial intelligence 2019

The programs do not play chess. They calculate chess. They have no clue about chess. But they have a search tree made by millions of nodes. Having programmed a chess engine i can say this is very true. I'e recently put stockfish into one of my apps but i have no illusions that i have added simply t...
by adams161
Fri Mar 01, 2019 7:49 am
Forum: Computer Chess Club: General Topics
Topic: playwitharena.com domain renewed
Replies: 5
Views: 745

playwitharena.com domain renewed

Domain Name: PLAYWITHARENA.COM Registry Domain ID: 83562751_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.psi-usa.info Registrar URL: http://www.psi-usa.info Updated Date: 2019-02-13T08:19:05Z Creation Date: 2002-02-12T12:31:21Z Registry Expiry Date: 2020-02-12T12:31:21Z Looks like its good for one ...