Search found 3597 matches

by Henk
Mon Apr 22, 2019 3:24 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish misevaluations:
Replies: 28
Views: 686

Re: Stockfish misevaluations:

hgm wrote:
Mon Apr 22, 2019 2:37 pm
Well, what can you expect from an engine that is only good on average?
Maybe best is to evaluate a position by playing some games and taking the average score. I don't know. Looks like alpha beta fails.
Zero method would do better.
by Henk
Mon Apr 22, 2019 3:20 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish misevaluations:
Replies: 28
Views: 686

Re: Stockfish misevaluations:

And what's wrong with that? White will eventually sac a pawn, break free and win the game :shock: It will take some time with 50 move rule, sure, but white will win. How? I don't see it. Black can block everything. You mean sacrifice the b pawn. But then Bb5, Rc6 and Ke8 and Queen can't pass. By th...
by Henk
Mon Apr 22, 2019 1:11 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish misevaluations:
Replies: 28
Views: 686

Stockfish misevaluations:

I encountered this position in a real human-human game. Me playing with white.

Stockfish 10 evaluates this as +3.30

[d] 4b3/5k2/p5p1/P2p1p1p/1PpPrP1P/2P2QP1/5K2/8 w - - 6 8

Stupid engines
by Henk
Fri Apr 12, 2019 9:46 pm
Forum: Computer Chess Club: General Topics
Topic: Longest games
Replies: 13
Views: 766

Re: Longest games

Hi hi hi hi Fairy max unable to win KNBk Hihihi SchaakMachine unable To win a single game Shaaame on you 😁 Does It know KKQ or KKR ? Hooope sooo 😉 Shame shame shame..... No it can't finish KRk. It is because of last changes. I think I already know why. It was rounding/truncating evaluation value by...
by Henk
Tue Apr 09, 2019 3:34 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Best age for chess programming?
Replies: 9
Views: 964

Re: Best age for chess programming?

I heard a story that some experienced programmers can be 10-20 times more productive than less experienced ones.
by Henk
Mon Apr 08, 2019 11:15 am
Forum: Computer Chess Club: General Topics
Topic: Longest games
Replies: 13
Views: 766

Re: Longest games

Daniel Anulliero wrote:
Mon Apr 08, 2019 9:17 am
Henk wrote:
Sat Apr 06, 2019 5:39 pm
Hi hi hi hi Fairy max unable to win KNBk
Hihihi SchaakMachine unable To win a single game
Shaaame on you 😁
Does It know KKQ or KKR ? Hooope sooo 😉
Shame shame shame.....
if you can't dance too.
by Henk
Mon Apr 08, 2019 11:04 am
Forum: Computer Chess Club: General Topics
Topic: Longest games
Replies: 13
Views: 766

Re: Longest games

Yes my engine is still in a bad state. Only once in a while able to win against fairy max.
KQk no problem. Don't know about KRk. Of course my engine can't win KBNk. Much too difficult.
But I was surprised that fairy max wasn't able to finish KBNk for it usually plays endgame very well.
by Henk
Sat Apr 06, 2019 5:39 pm
Forum: Computer Chess Club: General Topics
Topic: Longest games
Replies: 13
Views: 766

Re: Longest games

Hi hi hi hi Fairy max unable to win KNBk endgame. " Shame shame shame hey shame on you If you can't dance too I said shame shame shame shame shame shame shame Shame on you If you can't dance too " [Event "Computer Chess Game"] [Site "HP"] [Date "2019.04.06"] [Round "-"] [White "SchaakMachine"] [Blac...
by Henk
Fri Mar 29, 2019 1:10 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: TT's fool
Replies: 3
Views: 482

Re: TT's fool

"If the score bound would ly on the proper side of the search window, this would mean the node is not a PV node after all, even if you expected it to be one" Don't know if I understand. You mean for instance when calculating PV and TT contains an upperbound less than alpha it returns alpha (when usi...
by Henk
Fri Mar 29, 2019 12:26 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: TT's fool
Replies: 3
Views: 482

TT's fool

If you calculate position value depending on some parameters other than position or depth you get fooled when using transposition table. For instance if you do other reductions when calculating PV then you can't use TT for looking up the value because you might have stored the result of this positio...