Search found 1253 matches

by jp
Sat Apr 04, 2020 6:38 pm
Forum: Computer Chess Club: General Topics
Topic: 1.g4 opening is losing?
Replies: 405
Views: 29518

Re: 1.g4 opening is losing?

(Of course, I have no proof that the final position here is genuinely drawn - but it is evaluated at 0.00 at depth 40, so clearly black has already blundered by this point) Or else this is a drawing line for White. People who believe Black wins by force are free to point out where they think Black ...
by jp
Fri Apr 03, 2020 11:19 pm
Forum: Computer Chess Club: General Topics
Topic: Fairly difficult EG puzzle
Replies: 21
Views: 768

Re: Fairly difficult EG puzzle

It remains true that Sting claiming +1.29 while giving a drawing line at depth 28 is wrong, though. and it remains true that it still found the key move (Nd5) at the 7 second mark whether the follow up was absolutely correct or not. I don't know why anyone would place significance on an engine stum...
by jp
Fri Apr 03, 2020 9:40 pm
Forum: Computer Chess Club: General Topics
Topic: Fairly difficult EG puzzle
Replies: 21
Views: 768

Re: Fairly difficult EG puzzle

That's because it already rejected 1...cxd5 at the 12 second mark as the best defense and instead focused on 1...Ke3-d2 Do we know that at the 12 second mark? At depth 29, it only gives 1.Nc3-d5+ c6xd5. Does that really mean it's rejected its previous 2nd move? (Clearly at the 31 second mark it has...
by jp
Fri Apr 03, 2020 7:13 pm
Forum: Computer Chess Club: General Topics
Topic: Fairly difficult EG puzzle
Replies: 21
Views: 768

Re: Fairly difficult EG puzzle

Sting-SF 19 finds the key move in 7 seconds on my 20 core dual xeon 2.8GHZ 8GB hash (max for sting) Sting-sf-19: 28 00:11 84,097k 7,044k +1.29 1.Nc3-d5+ c6xd5 2.e4xd5 Bg6-e8 3.g4-g5 Ke3-d4 4.g5-g6 Be8xg6 5.Bc2xg6 Kd4xd5 6.Kh2xh3 Kd5-c4 7.Bg6-h5 Kc4-b4 8.Bh5-e8 a7-a6 9.Kh3-g4 b6-b5 10.a4xb5 a6xb5 11...
by jp
Fri Apr 03, 2020 1:12 am
Forum: Computer Chess Club: General Topics
Topic: Fairly difficult EG puzzle
Replies: 21
Views: 768

Re: Fairly difficult EG puzzle

Jan Timman | Special Price 1. Nd5 💣 8/p7/1pp3b1/4p3/P3P1P1/2N1k2p/2B4K/8 w - - 0 0 Komodo 13.2 fails (depth 38): +0.33 1.Bb1 Bf7 2.g5 Kd4 3.Ne2+ Ke3 4.Nc1 b5 5.axb5 cxb5 6.Kxh3 a5 7.Ba2 Be8 8.Kg4 Bg6 9.Bd5 a4 10.Bc6 a3 11.Bd5 Kd2 12.Na2 Kc2 13.Kf3 Kd3 14.Kf2 Kd2 15.Kg3 Kc2 16.Kg4 Kd2 17.Kh4 Kd3 18....
by jp
Tue Mar 31, 2020 1:28 pm
Forum: Computer Chess Club: General Topics
Topic: How does Leela scale to ram?
Replies: 5
Views: 319

Re: How does Leela scale to ram?

corres wrote:
Tue Mar 31, 2020 6:13 am
Leele satisfies with a slow RAM - what is effective the page file sys - so if set for your PC a big page file sys on your HDD even it will be appropriate for Leela.
But will setting a big page file sys make Leela destroy your hard drive?
by jp
Mon Mar 30, 2020 12:39 pm
Forum: Computer Chess Club: General Topics
Topic: Does YOUR Engine Play This Sac? Is it Sound?
Replies: 12
Views: 667

Re: Does YOUR Engine Play This Sac? Is it Sound?

Komodo 13.2, PV=2: depth=25 +0.96 15.Qf2 Ra6 16.Nde2 Bf8 17.b3 b6 18.h3 Bb7 19.Rd2 Nf6 20.Ng3 Nfd7 21.Rfd1 Raa8 22.Nge2 Nf6 23.g4 h6 24.Qg2 Nh7 25.h4 Qe7 26.g5 Rad8 27.Bd4 Bg7 +0.83 15.Ndb5 cxb5 16.Nxb5 Qb8 17.Nxd6 Re6 18.e5 Ra6 19.Nb5 b6 20.Qf2 Bb7 21.Bd5 Re7 22.Qh4 Bf8 23.Rf3 Ra8 24.Rh3 h5 25.Nc3 ...
by jp
Sun Mar 29, 2020 8:33 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CEGT - rating lists March 29th 2020
Replies: 7
Views: 390

Re: CEGT - rating lists March 29th 2020

It is a tricky issue. In CCRL we currently treat the GTX1050 and below as single CPU, and the RTX2080 as multiple CPU. I'm not sure there is a right or wrong answer. In reality the GTX1050 is probably in between 1 and 2CPU. But is the CPU version of Leela on the list? That obviously can be single C...
by jp
Sat Mar 28, 2020 9:49 pm
Forum: Computer Chess Club: General Topics
Topic: An idea for a different type of tournament
Replies: 30
Views: 3719

Re: An idea for a different type of tournament

Don't expect SF 11 to find shortest mate in 2 posted positions. It can't even find mate in 11 :oops: 3qk3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1 What engine gives you mate in 11?? Komodo 13.2 only finds mate in 12 up to depth 27: depth=23 +M12 1.e4 Kd7 2.Qh5 Kc7 3.Nc3 Kb7 4.d4 Qc7 5.Qf5 Qb6 6.Bf4 Q...
by jp
Sat Mar 28, 2020 8:32 pm
Forum: Computer Chess Club: General Topics
Topic: testposition from the topboard of the candidates
Replies: 35
Views: 1383

Re: testposition from the topboard of the candidates

Stockfish give +7 for white after 33.Rb7 FEN: 6r1/pR1nk3/4p2p/3pPp1N/q1pP1P1p/2P5/6P1/1Q4K1 b - - 1 33 Till now it looks like that 26...g6 is no improvement for the defence against 23.f4 ! Maybe you can impove the defence? Check the black moves given by Lc0 in the posting of zullil. If you didn´t f...