Search found 2150 matches

by Jouni
Fri Jan 22, 2021 8:09 am
Forum: Computer Chess Club: General Topics
Topic: Questionable positions in the Hard-Talkchess-2020 set
Replies: 21
Views: 1925

Re: Questionable positions in the Hard-Talkchess-2020 set

There is 4 winning moves at least. Analysis by Stockfish 110121: 1. +- (5.27): 1.Qxd2 Ba6 2.Ng4 Rac8 3.Re1 Rfe8 4.Qg5 Kf8 5.Ne5 Rc7 6.Ng6+ Kg8 7.Nf4 Bd3 8.Nxd3 Qd8 9.Qg3 Qxf6 10.Qxc7 cxd4 11.Rf1 Qe7 12.Qxe7 Rxe7 13.cxd4 Rc7 14.Rc1 Rc4 15.Rxc4 dxc4 16.Nb4 b5 17.Nc6 a6 18.Kf1 Kh7 19.Ne5 f6 20.Nd7 Kg8 ...
by Jouni
Thu Jan 21, 2021 8:43 pm
Forum: Computer Chess Club: General Topics
Topic: Endgame test: NNUE vs syzygy
Replies: 1
Views: 159

Endgame test: NNUE vs syzygy

Yes You read right! Just for fun and curiosity I ran Stockfish dev version with NNUE against classic version with 3 GB of syzygy tables. Result: Games Completed = 1000 of 1000 (Avg game length = 80.946 sec) Settings = Gauntlet/64MB/30000ms+300ms/M 450cp for 5 moves, D 100 moves/EPD:endgames.epd(3000...
by Jouni
Wed Jan 20, 2021 5:27 pm
Forum: Computer Chess Club: General Topics
Topic: Questionable positions in the Hard-Talkchess-2020 set
Replies: 21
Views: 1925

Re: Questionable positions in the Hard-Talkchess-2020 set

The goal: every position has exactly one winning/drawing move to find! How many are then left? 50?
by Jouni
Wed Jan 20, 2021 2:39 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal 3.1
Replies: 28
Views: 2402

Re: Crystal 3.1

Just one wish: Name engine Crystal 3.1 not Crystal 140121!
by Jouni
Wed Jan 20, 2021 1:49 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: SPCC: Testrun of Stockfish 210117 finished
Replies: 4
Views: 190

Re: SPCC: Testrun of Stockfish 210117 finished

NCM has peak rating 8.1. with "Update copyright years". Sadly not possible before 2022 again :) .
by Jouni
Tue Jan 19, 2021 4:14 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal 3.1
Replies: 28
Views: 2402

Re: Crystal 3.1

With "clean search" I got mostly better results in testsuites with Fritz. Arena does always engine re-start in every position so not needed? But I noticed really weird thing: with one core and "clean search" Crystal crashed always in Fritz! Sooner or later engine speed goes to 1-5 knps.
by Jouni
Mon Jan 18, 2021 9:34 pm
Forum: Computer Chess Club: General Topics
Topic: Some beginner questions about Lc0
Replies: 6
Views: 711

Re: Some beginner questions about Lc0

One more.I have read, that Lc0 needs a lot memory to run well. But how do You increase memory? Even if I increase hash to XX GB and NN cache to zillion system monitor says always about 2 GB GPU memory used and 15% of GPU power. System monitor sucks I quess?
by Jouni
Mon Jan 18, 2021 5:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Odd position for lc0 with 256x20-t40-1541.pb.gz NN
Replies: 5
Views: 146

Re: Odd position for lc0 with 256x20-t40-1541.pb.gz NN

My GTX card never reached 7 plies to output something in Fritz GUI. I use one big net.
by Jouni
Mon Jan 18, 2021 4:33 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal 3.1
Replies: 28
Views: 2402

Re: Crystal 3.1

"Clean Search" makes engine to crash in Fritz GUI.
by Jouni
Mon Jan 18, 2021 2:41 pm
Forum: Computer Chess Club: General Topics
Topic: Crystal 3.1
Replies: 28
Views: 2402

Re: Crystal 3.1

Fully agree Dann. There should be warning in Crystal page: NOT FOR PLAYING!