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by Uri Blass
Thu Dec 12, 2019 6:20 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish 10 was released 29.11.2018
Replies: 36
Views: 2499

Re: Stockfish 10 was released 29.11.2018

There are not enough games to know if a simplification is a regression or an improvement but you can get an unbiased estimate for the average value of simplifications from stockfish10. These are the first numbers and you need to get more numbers from the link and calculate average for that purpose....
by Uri Blass
Thu Dec 12, 2019 6:09 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish 10 was released 29.11.2018
Replies: 36
Views: 2499

Re: Stockfish 10 was released 29.11.2018

There are not enough games to know if a simplification is a regression or an improvement but you can get an unbiased estimate for the average value of simplifications from stockfish10. These are the first numbers and you need to get more numbers from the link and calculate average for that purpose....
by Uri Blass
Thu Dec 12, 2019 2:56 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 10 was released 29.11.2018
Replies: 36
Views: 2499

Re: Stockfish 10 was released 29.11.2018

I think that one of the problem with testing in the stockfish framework is that you adjudicate games as a draw when the evaluation is 0.00 for some moves and there is no progress and do not continue until you see a draw by the 50 move rule. It means that even if some patch make an improvement then ...
by Uri Blass
Wed Dec 11, 2019 10:43 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish 10 was released 29.11.2018
Replies: 36
Views: 2499

Re: Stockfish 10 was released 29.11.2018

I think that one of the problem with testing in the stockfish framework is that you adjudicate games as a draw when the evaluation is 0.00 for some moves and there is no progress and do not continue until you see a draw by the 50 move rule. It means that even if some patch make an improvement then ...
by Uri Blass
Wed Dec 11, 2019 5:16 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish 10 was released 29.11.2018
Replies: 36
Views: 2499

Re: Stockfish 10 was released 29.11.2018

Before release finally fix this 8/8/6p1/6Pp/4R2P/2K4k/8/3r4 w - - 91 111 SF played just 111.Kb4?? in CCC and lost. Stockfish eval Kb4 as a draw but Black-Diamond-XR7 eval Kb4 around -2. SF is buggy there. ON a clean start , SF get this correct and sees Kb4 is major blunder. It's the GHI raising its...
by Uri Blass
Tue Dec 10, 2019 7:01 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 10 was released 29.11.2018
Replies: 36
Views: 2499

Re: Stockfish 10 was released 29.11.2018

I did have something weird with Stockfish recently. I chose the latest build at the time for 4040 testing, and after 100 games it was -30 Elo to Stockfish 10. Yes I know that is a tiny sample, but the chances of it recovering that 30 Elo and gaining a further +30-40 Elo over the next couple of hund...
by Uri Blass
Sun Dec 08, 2019 7:44 am
Forum: Computer Chess Club: General Topics
Topic: stockfish 10 vs. Mephisto III S Glasgow
Replies: 116
Views: 7389

Re: stockfish 10 vs. Mephisto III S Glasgow

I have no idea what you talk about. I sum up: Mephisto III S Glasgow 68000 (5-10 NPS) wins against stockfish 10. Even worse Mephisto III 8 bit 1802 1-3 NPS with 6.1 MHz wins against stockfish 10. Mephisto III 8 bit 1802 1 NPS 3.5 MHz on 4 AA batteries wins against stockfish 10 too. Ic0 plays better...
by Uri Blass
Sat Dec 07, 2019 10:38 am
Forum: Computer Chess Club: General Topics
Topic: stockfish 10 vs. Mephisto III S Glasgow
Replies: 116
Views: 7389

Re: stockfish 10 vs. Mephisto III S Glasgow

Black is worse but not clearly losing before 16...Nc5 so I analyzed the reason that stockfish did not play 16...cxd5 and the problem is that after 17.Nxd5 stockfish prune all the queen moves so it does not see that the queen can escape and believe that 17.Nxd5 wins the queen(only at depth 6 it can ...
by Uri Blass
Fri Dec 06, 2019 11:05 pm
Forum: Computer Chess Club: General Topics
Topic: stockfish 10 vs. Mephisto III S Glasgow
Replies: 116
Views: 7389

Re: stockfish 10 vs. Mephisto III S Glasgow

Experiment: Mephisto III 8 bit 3.5 MHz on 4 mignon (AA) batteries. When on batteries the clock speed is reduced from 6.1 to 3.5 MHz. On that level it makes 1 (!!!). NPS. Level 6 = 40/120 or 3 minutes a move. I put stockfish10 on 180 Nodes per move. [Event "Computer Schach Partie"] [Site "ORION8"] [...
by Uri Blass
Thu Dec 05, 2019 8:42 pm
Forum: Computer Chess Club: General Topics
Topic: stockfish 10 vs. Mephisto III S Glasgow
Replies: 116
Views: 7389

Re: stockfish 10 vs. Mephisto III S Glasgow

Todays chess programs have no idea what chess is or how they shall win. They maximise score. They find key moves as if chess is a test position to solve. And if they see a mate score they do so. But they do not plan to mate. Why not. Mate is the target of the game. Stockfish solves chess by going v...