Search found 919 matches

by Zenmastur
Thu Dec 31, 2020 4:39 am
Forum: Computer Chess Club: General Topics
Topic: Long mates that can probably be shortened
Replies: 4
Views: 2174

Re: Long mates that can probably be shortened

[Event "?"] [Site "?"] [Date "2020.12.30"] [Round "?"] [White "?"] [Black "?"] [Result "1-0"] [EventDate "2020.12.30"] [FEN "7k/2b5/P1p5/8/3KR3/5P1p/2B5/2r5 w - - 0 1"] 1.a7 Bb6+ 2.Ke5 Bxa7 3.Kf6 Rxc2 4.Kf7 Rc4 5.Rxc4 Bf2 6.Kg6 Kg8 7.Rxc6 Kf8 8.f4 h2 9.Rc8+ Ke7 10.Rh8 Bg3 11.f5 Be5 12.Rh7+ Kd6 13.f...
by Zenmastur
Thu Dec 24, 2020 6:21 pm
Forum: Computer Chess Club: General Topics
Topic: Hard positions posted for 6 last moonths
Replies: 42
Views: 10831

Re: Hard positions posted for 6 last moonths

Also for me Shashchess is much faster than any other engine I tried. 1 Avoid move: Best move (ShashChess15.1-x86-64-avx2): f4-f5 Not found in: 31:21 Found 746 tablebases NNUE evaluation using nn-04cf2b4ed1da.nnue enabled 2/2 00:00 11k 2,833k +0.32 Kb3 Kd8 Kc4 Kc8 3/3 00:00 16k 3,902k +0.39 Kb3 Kd8 ...
by Zenmastur
Fri Dec 11, 2020 9:40 am
Forum: Computer Chess Club: General Topics
Topic: What is the better for chess: building a PC with 2 x RTX 3080 or with a Threadripper 3970x ?
Replies: 14
Views: 1675

Re: What is the better for chess: building a PC with 2 x RTX 3080 or with a Threadripper 3970x ?

The power consumption of a Threadripper 3970x OC-ed to 32 X 4.0 GHz is about 700 Watts. It is also the same as 2 x RTX 3080 OC-ed GPUs what needs a cheap "base" PC with 4-8 physical cores and 1200 Watts power supply. Seeing the CCC competition I can assume the chess power of Leela on 2 x RTX 2080 O...
by Zenmastur
Fri Dec 11, 2020 9:34 am
Forum: Computer Chess Club: General Topics
Topic: Draw or white win?
Replies: 7
Views: 1003

Re: Draw or white win?

Someone posted in Leela discord for big discrepancies among Leela vs Stockfish evaluations. Leela +0.05 vs Stockfish +5.00. I think that it is a fortress. ( And also Leela nets are trained based on 6 men TB adjudication) https://imgur.com/sRO7Hkz All three moves by black are tablebase draws. This o...
by Zenmastur
Tue Dec 01, 2020 2:46 am
Forum: Computer Chess Club: General Topics
Topic: ZZ-tune conclusively better than the Kiudee default for Lc0
Replies: 10
Views: 2483

Re: ZZ-tune conclusively better than the Kiudee default for Lc0

Pi4Chess wrote:
Tue Dec 01, 2020 1:25 am
May be this belongs more in Programming and technical discussions :D
i'M NOT SO SURE ABOUT THAT THE PEOPLE THAT ARE LIKELY TO USE IT....many many are right here....

Good work Kai!!!

+2

Regards,

Zenmastur
by Zenmastur
Sun Nov 22, 2020 10:17 am
Forum: Computer Chess Club: General Topics
Topic: 7 Man Syzygy and SSD
Replies: 83
Views: 29100

Re: 7 Man Syzygy and SSD

most important first. Importance is given by the size of the files divided by the number of times an endgames is seen in the database. SUM Number/ Pieces # in DB % SUM % GB Gb per MB 1 4+3 krppkrp 165,068 2.33% 165,068 26.21% 2.3 2.326 70.962 2 4+3 kpppkpp 60,353 0.85% 225,421 35.79% 4.4 2.107 28.6...
by Zenmastur
Sun Nov 22, 2020 10:17 am
Forum: Computer Chess Club: General Topics
Topic: 7 Man Syzygy and SSD
Replies: 83
Views: 29100

Re: 7 Man Syzygy and SSD

most important first. Importance is given by the size of the files divided by the number of times an endgames is seen in the database. SUM Number/ Pieces # in DB % SUM % GB Gb per MB 1 4+3 krppkrp 165,068 2.33% 165,068 26.21% 2.3 2.326 70.962 2 4+3 kpppkpp 60,353 0.85% 225,421 35.79% 4.4 2.107 28.6...
by Zenmastur
Tue Oct 13, 2020 8:56 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish bench in i486 & Pentium 75mhz !
Replies: 65
Views: 10588

Re: Stockfish bench in i486 & Pentium 75mhz !

How well does the new Stockfish 12 work on Pentiums and i486? Reply from here : http://talkchess.com/forum3/viewtopic.php?p=863999#p863999 Some approximations here : http://www.talkchess.com/forum3/viewtopic.php?f=6&t=72485 http://www.talkchess.com/forum3/viewtopic.php?f=2&t=63857 A version close t...
by Zenmastur
Sat Oct 10, 2020 10:41 pm
Forum: Computer Chess Club: General Topics
Topic: 1.g4 opening is losing?
Replies: 451
Views: 70539

Re: 1.g4 opening is losing?

Smells like a draw to me. Searching: 6k1/6p1/5p1p/5r1P/3p4/8/3rPP1R/4RK2 w - - 0 1 infinite: 0 time: 0 increment: 0 moves to go: 0 ... snip...snip... 87 -1.54 1:58:34 763165M Rc1 d3 exd3 Rxd3 Rc8+ Kh7 Rc4 Rd1+ Kg2 Rd2 Kf1 Rb5 Re4 Rc5 Rh3 Ra5 Rh2 Rdd5 Reh4 Rd1+ Ke2 Rc1 Kf3 Rc7 Re4 Rc3+ Ke2 Rc2+ Kf3 ...
by Zenmastur
Mon Oct 05, 2020 5:12 pm
Forum: Computer Chess Club: General Topics
Topic: 1.g4 opening is losing?
Replies: 451
Views: 70539

Re: 1.g4 opening is losing?

The problem with very long searches (1.5 Trillon nodes) is that unless you have a very large TT (i.e. at least equal to the nodes searched in bytes) they become unreliable simply because during a part of the sub-search the TT will be effectively completely over-written. Things found in one iteratio...