Search found 3973 matches

by syzygy
Sun May 12, 2019 8:03 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: syzygy request for info
Replies: 35
Views: 5018

Re: syzygy request for info

I have just read KNNvKB files and and in all the pairsData struct contained the order of pieces seems to be: white King, black King, black Bishop, white Knight, white knight. does it apply to all the files? or it can be that each pairdata inside a file can have different piece order? Why do you wan...
by syzygy
Sat May 11, 2019 1:42 pm
Forum: Computer Chess Club: General Topics
Topic: Opposite Color Bishop Endgames
Replies: 43
Views: 1470

Re: Opposite Color Bishop Endgames

Not at all. Having a high Elo can be achieved by only doing good moves in a sub-set of all chess positions, namely the positions that can be reached by the moves you select. You can arbitrarily suck in positions that you will never reach because you avoid them. And I would not call an entity that h...
by syzygy
Sun May 05, 2019 11:41 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: DTM50
Replies: 26
Views: 1923

Re: DTM50

As you are aware (see the top two posts), a tablebase that only lists DTM50 when entered with the ply counter at zero cannot reliably be used to find moves when the ply counter is larger than zero. So you won't be able to play perfectly. Of course. This is why I say one should play by DTC50 when yo...
by syzygy
Sun May 05, 2019 11:39 pm
Forum: Computer Chess Club: General Topics
Topic: asmFish
Replies: 23
Views: 1497

Re: asmFish

I'm auditing the games now and something interesting is apparent. It was my perception while watching the games that while asmFish was 1,000-2,000 kN/s faster, SF seemed to search deeper. I just shrugged this notion off, thinking "That's impossible!" After all, asmFish IS Stockfish, just an outdate...
by syzygy
Sun May 05, 2019 4:52 pm
Forum: Computer Chess Club: General Topics
Topic: asmFish
Replies: 23
Views: 1497

Re: asmFish

... asmFish has been functionally identical to Stockfish ever since. So the difference between asmFish and the corresponding version of Stockfish is speed and only speed . If you are right what was the sense to make asmFish AND pedantFish simultaneously? asmFish included a few speed optimizations t...
by syzygy
Sun May 05, 2019 1:02 pm
Forum: Computer Chess Club: General Topics
Topic: asmFish
Replies: 23
Views: 1497

Re: asmFish

I'm auditing the games now and something interesting is apparent. It was my perception while watching the games that while asmFish was 1,000-2,000 kN/s faster, SF seemed to search deeper. I just shrugged this notion off, thinking "That's impossible!" After all, asmFish IS Stockfish, just an outdate...
by syzygy
Sun May 05, 2019 12:54 pm
Forum: Computer Chess Club: General Topics
Topic: asmFish
Replies: 23
Views: 1497

Re: asmFish

It would not be a superfluous test because Asmfish is not an asm-copy of Stockfish and the difference between them more then the speed. There was a real copy named pedantFish, but this version ended in the past. The old asmFIsh was replaced with pedantFish when it was found that pedantFish was abou...
by syzygy
Fri May 03, 2019 10:27 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: DTM50
Replies: 26
Views: 1923

Re: DTM50

As you are aware (see the top two posts), a tablebase that only lists DTM50 when entered with the ply counter at zero cannot reliably be used to find moves when the ply counter is larger than zero. So you won't be able to play perfectly. Of course. This is why I say one should play by DTC50 when yo...
by syzygy
Fri May 03, 2019 10:21 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: DTM50
Replies: 26
Views: 1923

Re: DTM50

I'm curious, what engine was this with? Seems quick!! :) Will check Stockfish, Fritz 14 (uses Nalimov) and a few others to see how they compare. That was with Cfish, which supports my DTM files. Unfortunately, running it with 6-piece DTM files slows it down to a crawl (once the search gets into mat...
by syzygy
Fri May 03, 2019 10:17 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: DTM50
Replies: 26
Views: 1923

Re: DTM50

When I was studying high-school geometry, I remember I wasn't told, or at least not right away, that a short simple proof is preferable to a long, complex one. So I'd sometimes come up with a long, complex one. It wasn't incorrect but it wasn't elegant, either. This is kind of like that. On the oth...