Search found 6680 matches

by Uri Blass
Fri Jan 03, 2020 4:54 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Dylan Sharp Vs. Harvey Williamson (G4)
Replies: 379
Views: 29183

Re: Dylan Sharp Vs. Harvey Williamson (G4)

The position clearly got worse for white: Some scores of stockfish at depth 35 after 1.g4 d5 1)2.c4 -0.89/35 2)2.g5 -1.03/35 3)2.e3 -1.04/35 4)2.h3 -1.06/35 5)2.Bg2 -1.23/35 6)2.e4 -1.26/35 7)2.d4 -1.44/35 8)2.Bh3 -1.46/35 9)2.d3 -1.59/35 10)2.Nc3 -1.64/35 11)2.Nf3 -1.65/35 12)2.c3 -1.71/35 13)2.a3 ...
by Uri Blass
Fri Jan 03, 2020 8:03 am
Forum: Computer Chess Club: General Topics
Topic: CCRL adapted TC to current hardware
Replies: 32
Views: 2800

Re: CCRL adapted TC to current hardware

I am very much in favour of incremental clock which in my case (I currently test at 40/2) would be 4+2, with a ratio of 120, while approximately keeping total game time the same. ... I guess this was a typo and you meant 2+2 instead of 4+2? 40/2 is similar (just a bit weaker IIRC) compared to 2+1 s...
by Uri Blass
Thu Jan 02, 2020 11:00 am
Forum: Computer Chess Club: General Topics
Topic: CCRL adapted TC to current hardware
Replies: 32
Views: 2800

Re: CCRL adapted TC to current hardware

I am very much in favour of incremental clock which in my case (I currently test at 40/2) would be 4+2, with a ratio of 120, while approximately keeping total game time the same. ... I guess this was a typo and you meant 2+2 instead of 4+2? 40/2 is similar (just a bit weaker IIRC) compared to 2+1 s...
by Uri Blass
Mon Dec 23, 2019 7:31 pm
Forum: Computer Chess Club: General Topics
Topic: Engine's "ELO" revisited
Replies: 38
Views: 2935

Re: Engine's "ELO" revisited

I thought you were interested in a list with fitting opponents for you to play against? It seems I wasted my time to give you such a list. It is completely different at Carlsens or Nakamuras level and also at the low end, but I am really not interested in discussing this...and there will be no gene...
by Uri Blass
Mon Dec 23, 2019 7:17 pm
Forum: Computer Chess Club: General Topics
Topic: a test position for positional understanding
Replies: 1
Views: 282

a test position for positional understanding

r1bqk1nr/pppp2pp/2n5/2b1pp2/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq f6 0 5 bm d4 One of the children that I teach chess played f5 and does not understand why it is a bad move. I told him that black will have a problem to castle short because of bishop c4 but he said that he wanted to castle long and at...
by Uri Blass
Mon Dec 23, 2019 4:50 pm
Forum: Computer Chess Club: General Topics
Topic: SF 11 on Christmas?
Replies: 27
Views: 3443

Re: SF 11 on Christmas?

SF was closest to winning at move 57 when the syzygy tablebases say Ra5+ DTZ 36 but played Nf3 that is only DTZ 54 I think that the problem is that the stockfish team do not test from random tablebases positions and only test from random opening positions. They should test patches from random 7 pie...
by Uri Blass
Sun Dec 22, 2019 6:27 pm
Forum: Computer Chess Club: General Topics
Topic: SF 11 on Christmas?
Replies: 27
Views: 3443

Re: SF 11 on Christmas?

SF was closest to winning at move 57 when the syzygy tablebases say Ra5+ DTZ 36 but played Nf3 that is only DTZ 54 I think that the problem is that the stockfish team do not test from random tablebases positions and only test from random opening positions. They should test patches from random 7 piec...
by Uri Blass
Sat Dec 21, 2019 2:25 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Dylan Sharp Vs. Harvey Williamson (G4)
Replies: 379
Views: 29183

Re: Dylan Sharp Vs. Harvey Williamson (G4)

4. Ne2 ( 1 node analyzed - deemed lost :shock: ) Explain this "1 node analyzed". For that to be even vaguely true, I guess you have to think about that move for a split-second and immediately judge it lost. Otherwise it would be more than 1 node... Or maybe I should step back and ask what you mean ...
by Uri Blass
Sat Dec 21, 2019 9:50 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Graph History Interaction 2 questions
Replies: 9
Views: 1021

Re: Graph History Interaction 2 questions

I also think that it is a mistake to store draws because of the fifty move rule as 0.00 .. That has been one of the suggested "solutions" since the hash tables were first incorporated 30+ years ago . But that doesn't solved the fake mate scores. (Stockfish has a hack not to show a fake mate score, ...
by Uri Blass
Sat Dec 21, 2019 1:28 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Graph History Interaction 2 questions
Replies: 9
Views: 1021

Re: Graph History Interaction 2 questions

<snipped> Simply ignoring the 50 move rule will not help. I believe simply ignoring the 50 move rule and continue to search is going to help if you do it only in part of the cases(I do not claim to solve 100% of the cases when there is a problem but at least you can probably avoid cases when the eva...