Search found 144 matches

by abulmo2
Sun Nov 10, 2019 9:48 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: The Cat And The Cucumber
Replies: 14
Views: 993

Re: The Cat And The Cucumber

Graham Banks wrote:
Sun Nov 10, 2019 7:46 pm
Congratulations to Richard (Amoeba author) for winning ahead of some tough competition. :)

Thanks to all who took an interest in the tournament.
Thanks to run tournaments where Amoeba stands a chance to win. ;-)
by abulmo2
Sat Nov 09, 2019 9:44 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: On-line engine blitz tourney November - the games
Replies: 0
Views: 248

On-line engine blitz tourney November - the games

Here are the games played by Amoeba during the tournament : Event "ICS rated blitz match"] [Site "nightmare-chess.nl"] [Date "2019.11.09"] [Round "-"] [White "Amoeba"] [Black "Nemeton"] [Result "1-0"] [WhiteElo "2778"] [BlackElo "2338"] [TimeControl "300+1"] 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe...
by abulmo2
Tue Nov 05, 2019 4:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: oldie but goody
Replies: 11
Views: 951

Re: oldie but goody

Yes, please publish it.
It would be interesting from an historical point of view.
by abulmo2
Sun Nov 03, 2019 10:50 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: "stat score bonus" in stockfish
Replies: 6
Views: 623

Re: "stat score bonus" in stockfish

The (real) idea is to give a bonus if the previous move of the opponent was historically bad, and a penalty if the previous move of the opponent was historically good. Is not the bonus added recursively? It looks to me that the result is to inflate deep score. Maybe it adds confidence to score retu...
by abulmo2
Fri Oct 25, 2019 8:11 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: UCI Win/Draw/Loss reporting
Replies: 60
Views: 2890

Re: UCI Win/Draw/Loss reporting

Well, what is most wrong about 'wdl' as proposed is that it is partly redundant: the three values must sum up to 100. It would be more elegant to have the expected score (winprob + drawprob/2) as a new score mode (as alternative to 'mate' and 'cp'), and add a new info 'drawprob' with a single value...
by abulmo2
Wed Oct 16, 2019 11:47 am
Forum: Computer Chess Club: General Topics
Topic: Ataxx
Replies: 53
Views: 3788

Re: Ataxx

It is already possible to play ataxx with engines on GGS - The Generic Game Server.
This is the place where I used to play Othello games with my engine Edax.
by abulmo2
Tue Oct 15, 2019 8:31 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: kiwipete perft position
Replies: 55
Views: 11569

Re: kiwipete perft position

(3)Ideal would be to have something that is 64 bytes long, starting on an address divisible by 64, to take advantage of cache pre-fetching. But that is another topic. Is it really worth in practice? I just tested Crafty 25.3 with/without aligned allocation, and the aligned allocation gain is near 0...
by abulmo2
Fri Oct 04, 2019 10:46 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish mates Allie in 34 moves / TCEC
Replies: 20
Views: 3379

Re: Stockfish mates Allie in 34 moves / TCEC

You really think 16. ... b4 is losing? I don't see it! I said probably losing, I am not sure of anything. From the analysis posted above, the line is : 16. ... b4 17. axb4 cxb4 18. e5 dxe5 19. fxe5 Re8 20. Kd1 Bxd5 21.exf6 hxg5 22.hxg5 g6 23.fxe7 Rxe7 24.Ra6 Rc7 25.Qd3 Bc4 26.Qd6 Qxd6 27.Rxd6 Re8 2...
by abulmo2
Thu Oct 03, 2019 9:53 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish mates Allie in 34 moves / TCEC
Replies: 20
Views: 3379

Re: Stockfish mates Allie in 34 moves / TCEC

Here is a postmortem reverse analysis done with (now old) stockfish 10 at depth 30 with 4 threads. The following moves by Allie look wrong: 16. .. b4 is probably losing 21. .. Nh5 is certainly losing 23. .. Qd7 is definitely losing Note also that Allie played badly the endgame, the mate should have ...
by abulmo2
Tue Sep 17, 2019 8:20 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Level 11 Perft statistics
Replies: 5
Views: 1343

Re: Level 11 Perft statistics

What does Disc and Dbl mean?