Search found 164 matches

by Spliffjiffer
Sun Jun 23, 2019 2:48 pm
Forum: Computer Chess Club: General Topics
Topic: Arasan test suite - draft version
Replies: 28
Views: 2114

Re: Arasan test suite - draft version

hi John, id like to thank you for the new suite !! here are 2 (3) more testpositions i came accross over the last few months, maybe they are of interest for you as well (all about king-safety): 1. r1bq1r2/1ppnbpkp/n2p2p1/p2Pp3/2P1P1P1/2N1BN2/PP1KBP2/R2Q3R w - - 0 1 1. Rxh7+ Kxh7 2. Qh1+ Kg8 3. Qh6 R...
by Spliffjiffer
Wed Jun 19, 2019 12:58 am
Forum: Computer Chess Club: General Topics
Topic: is this an issue with missing DTZ ?
Replies: 7
Views: 506

Re: is this an issue with missing DTZ ?

i see that the bug was found and already fixed (as far as i understood)...im glad that i could help a tiny bit in terms of verifying when to search...this should close the thread, thx for the replys :-)
by Spliffjiffer
Tue Jun 18, 2019 8:21 pm
Forum: Computer Chess Club: General Topics
Topic: is this an issue with missing DTZ ?
Replies: 7
Views: 506

Re: is this an issue with missing DTZ ?

@ syzygy: yes thats correct: with multiPV=5 last SF-dev's are showing: lose, lose, draw, lose, lose ...insane but true (here on my pc at least)

@Louis: thanks for the related link...seems like a bug indeed from my pov :-(
by Spliffjiffer
Tue Jun 18, 2019 4:09 pm
Forum: Computer Chess Club: General Topics
Topic: is this an issue with missing DTZ ?
Replies: 7
Views: 506

Re: is this an issue with missing DTZ ?

little update: i think i found out that this issue happens only after some patch released on exactely the 09.06.2019...sry for not beeing able to delimit this further (internet connection problems)...sry for the (probably) misleading headline as well because it seems pretty much clear now to me that...
by Spliffjiffer
Tue Jun 18, 2019 2:46 pm
Forum: Computer Chess Club: General Topics
Topic: is this an issue with missing DTZ ?
Replies: 7
Views: 506

is this an issue with missing DTZ ?

i have no 7-men syzygy's DTZ installed, only some WDL (among these is KBPPvKBP) [d]2b5/8/3k3p/P7/8/3K1BP1/8/8 b - - 0 1 here SF lost with 1...Bh3 ?? while WDL is giving 0.00 for 1...Kc5 (only move)...SF was running on multiPV=1. if i look "into its brain" by using multiPV say =5 its showing 1...Kc5 ...
by Spliffjiffer
Wed Feb 20, 2019 9:18 pm
Forum: Computer Chess Club: General Topics
Topic: Really difficult mate
Replies: 7
Views: 1181

Re: Really difficult mate

yes, to trick machines with lets say multi PV first and let them now think in single PV or give them inside with multiple variation before and let them run again (oc with the filled hashes) is known to myself...the point was (until now at least) that not nearly every position can be handled like thi...
by Spliffjiffer
Sat Feb 16, 2019 6:24 pm
Forum: Computer Chess Club: General Topics
Topic: Really difficult mate
Replies: 7
Views: 1181

Re: Really difficult mate

a well known nice old problem...the solution is the given one and afaict it is correct (never found anything better) :-)...the initial and 9. Kc8 are the critical moves to find (for engines)
by Spliffjiffer
Sat Feb 02, 2019 12:14 pm
Forum: Computer Chess Club: General Topics
Topic: End of Era is there: SF is finally beaten!
Replies: 118
Views: 17839

Re: End of Era is there: SF is finally beaten!

damn, this end came from an edge we didnt expect, now its over :-)
by Spliffjiffer
Sun Jan 27, 2019 4:41 pm
Forum: Computer Chess Club: General Topics
Topic: SF 10 and Zugzwang - Nullmove disable?
Replies: 2
Views: 483

Re: SF 10 and Zugzwang - Nullmove disable?

McCainX has such an option implemented...MikeB is the author and it is a fork of SF...it does not bahave exactly as SF does but mainly very similar, if thats enough for you that would be my recommendation...i dont know wether i can give the link but you can find it in this forum easily
by Spliffjiffer
Sat Jan 26, 2019 9:24 pm
Forum: Computer Chess Club: General Topics
Topic: stockfish's positional understanding better than 2700
Replies: 5
Views: 1008

Re: stockfish's positional understanding better than 2700

its a long tournament near the end, people get exausted and Sam was disappointed by his blunder before...when things accumulate humans make mistakes easier...if he would have been fresh im sure he had not resigned and saw the draw !!?