Search found 3167 matches

by MikeB
Tue Nov 12, 2019 1:46 am
Forum: Computer Chess Club: General Topics
Topic: Official Release of Ethereal 11.75, supporting MultiPV
Replies: 43
Views: 2176

Re: Official Release of Ethereal 11.75, supporting MultiPV

Welcome back and wishing you the best of health!!
by MikeB
Tue Nov 12, 2019 12:28 am
Forum: Computer Chess Club: General Topics
Topic: Wrong analysis with 7 men?
Replies: 4
Views: 389

Re: Wrong analysis with 7 men?

Wrong Stockfish analysis with 7 men?Does the engine have a bug, or the syzygy file? 7k/4Q1p1/5r1p/7P/8/8/2K5/8 w - - 0 1 Analysis by Raubfisch ME262_GTZ20d1c_sl (Fritz GUI): 51.Dd8+ Kh7 52.Dd3+ Kh8 53.Kd2 Kg8 +- (3.17) Tiefe: 59/98 00:00:18 326MN, tb=103903 Komodo 13.1 shows on my Smartphone here 0...
by MikeB
Mon Nov 11, 2019 3:19 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Dylan Sharp Vs. Harvey Williamson (G4)
Replies: 235
Views: 8799

Re: Dylan Sharp Vs. Harvey Williamson (G4)

I was hoping for 18. Rc2 as I found Re6! Yes, I think 18. Rc2 leads to a "black to move and mate in X" position :) 18. Rcc1 is the only move that still holds the draw (except that one misstep and I'm toast, let's see if I don't trip.) We can finally show how a position where white is lost looks lik...
by MikeB
Mon Nov 11, 2019 2:03 am
Forum: Computer Chess Club: General Topics
Topic: Arasan's dubious (?!) move.
Replies: 4
Views: 463

Re: Arasan's dubious (?!) move.

It seems Komdo 13.2.5 is able to convert this endgame against Lc0 and SF 10 but not SF Dev. Game duration 1 hour and 50 minutes. Lc0 2-Core | Komodo 6-Core | Ponder on. [Event "?"] [Site "i7-5960X 4.5GHz"] [Date "2019.11.07"] [Round "?"] [White "lc0"] [Black "komodo-13.2.5-64bit-bmi2"] [Result "0-1...
by MikeB
Sat Nov 09, 2019 2:51 pm
Forum: Computer Chess Club: General Topics
Topic: Question about RAM
Replies: 5
Views: 585

Re: Question about RAM

schack wrote:
Sat Nov 09, 2019 1:56 pm
Well now I feel better about springing for the whole 64gb. :)
Especially if you're doing deep deep analysis. People who know more than me, say Hash works best if there is some hash pressure, meaning that it gets at least 50-70% full. I'm not an expert, so I take their word.
by MikeB
Sat Nov 09, 2019 2:46 pm
Forum: Computer Chess Club: General Topics
Topic: Perfect2019 books are out - thank you Sedat!
Replies: 4
Views: 524

Re: Perfect2019 books are out - thank you Sedat!

Just noticed that Sedat published a new version of his excellent Perfect series. Supported are all common file types, from Arena to Polyglot. I have always found these to be of highest quality and wanted to thank Sedat for his continued contribution to our hobby. (still missing his friendly online ...
by MikeB
Sat Nov 09, 2019 5:19 am
Forum: Computer Chess Club: General Topics
Topic: Question about RAM
Replies: 5
Views: 585

Re: Question about RAM

Ok, one more question, then. Does Stockfish have to have hash tables in powers of 2 anymore? Or can I use, say, 12gb of ram for hash? (Or 48?) I know there was a commit last year that dealt with something related to this, but my understanding (despite not being a NOOB) is limited of such matters. Y...
by MikeB
Fri Nov 08, 2019 12:07 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish with and without contempt
Replies: 36
Views: 1550

Re: Stockfish with and without contempt

based on what I see, I no reason not to use SF contempt scoring in analysis, but I understand people have their own reasons and that's fine, it is certainly not my way or the highway ;>) - also , note - that SF contempt code is symmetrical ... Are you sure, Mike? To me it looks like Contempt breaks...
by MikeB
Thu Nov 07, 2019 6:45 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish with and without contempt
Replies: 36
Views: 1550

Re: Stockfish with and without contempt

The only place where it matters, both in game play and analysis, is when the score is very close to zero after a good, long think. E.g. Well under a pawn. Well the good news is when the score get close to zero with a deep long think, , contempt also gets very close to 0 info depth 42 seldepth 43 mu...
by MikeB
Thu Nov 07, 2019 6:41 am
Forum: Computer Chess Club: General Topics
Topic: LCZero blunders in TCEC cup 4
Replies: 20
Views: 1739

Re: LCZero blunders in TCEC cup 4

New game 5k2/3n1p1p/7P/1pqN2P1/2r1rP2/5Q2/6K1/3R1R2 b - - 0 1 Analysis by Lc0 v0.22.0: 40...b4 41.Rfe1 Rxe1 42.Rxe1 b3 43.Kh3 Rc1 44.Rxc1 Qxc1 45.Qxb3 Qf1+ 46.Kh2 Qf2+ 47.Kh3 Qf1+ 48.Kh4 Qe1+ 49.Kg4 Qe2+ 50.Kg3 Qe1+ 51.Kf3 Qf1+ 52.Kg4 Qe2+ 53.Qf3 Qxf3+ 54.Kxf3 f6 55.Kg4 fxg5 56.Kxg5 Kf7 57.Kf5 Nf8 ...