Search found 94 matches

by Karol Majewski
Mon Aug 13, 2018 5:35 pm
Forum: Computer Chess Club: General Topics
Topic: analysis of 1.e4 e5 2.Nf3 f6
Replies: 25
Views: 3852

Re: analysis of 1.e4 e5 2.Nf3 f6

I get your point Louis but there is a difference between 'much worse' and 'lost'. It's clear that black is much worse here but is he lost? This is what Uri asked in the first post, I belive. There are many opening positions where engine gives +1.80 and later it occurs that it's not possible to conv...
by Karol Majewski
Mon Aug 13, 2018 12:05 pm
Forum: Computer Chess Club: General Topics
Topic: analysis of 1.e4 e5 2.Nf3 f6
Replies: 25
Views: 3852

Re: analysis of 1.e4 e5 2.Nf3 f6

the opening is refuted for practical purposes. if other lines (ruy lopez, petroff, etc.) give black 0.40, why would black hasten to a 1.80 score? :D If Ruy Lopez and Petroff give black 0.40 then why people keep playing the king's gambit 2.f4? Again, after 2.f4 white is much worse but is he lost? We...
by Karol Majewski
Mon Aug 13, 2018 11:47 am
Forum: Computer Chess Club: General Topics
Topic: analysis of 1.e4 e5 2.Nf3 f6
Replies: 25
Views: 3852

Re: analysis of 1.e4 e5 2.Nf3 f6

So it seems that the main goes like: 1.e4 e5 2.Nf3 f6 3.Nxe5 Qe7 4.Nf3 d5 5.d3 and now black has a choice: 5...dxe4 6.dxe4 Qxe4 5...Nc6 5...Be6 So if we want to refute the opening - and I belive that there is a refutation - we should analyse these three positions to a great depth. Note that after 5...
by Karol Majewski
Mon Aug 13, 2018 7:50 am
Forum: Computer Chess Club: General Topics
Topic: analysis of 1.e4 e5 2.Nf3 f6
Replies: 25
Views: 3852

Re: analysis of 1.e4 e5 2.Nf3 f6

So it seems that the main goes like: 1.e4 e5 2.Nf3 f6 3.Nxe5 Qe7 4.Nf3 d5 5.d3 and now black has a choice: 5...dxe4 6.dxe4 Qxe4 5...Nc6 5...Be6 So if we want to refute the opening - and I belive that there is a refutation - we should analyse these three positions to a great depth. Note that after 5....
by Karol Majewski
Fri Aug 10, 2018 5:08 pm
Forum: Computer Chess Club: General Topics
Topic: Something goes wrong with lc0 since yesterday?
Replies: 272
Views: 40579

Re: Something goes wrong with lc0 since yesterday?

I'm still CPU guy, so I have question regarding GPU: is Leela's search on GPU deterministic, so that you can reproduce results on the same hardware, or is it non-deterministic, just like in paralell multi-CPU search?
by Karol Majewski
Thu Aug 09, 2018 11:43 am
Forum: Computer Chess Club: General Topics
Topic: analysis of 1.e4 e5 2.Nf3 f6
Replies: 25
Views: 3852

Re: analysis of 1.e4 e5 2.Nf3 f6

Can someone, perhaps Louis, provide deeper (depth > 60) analysis of this position? It's not so obvious that 3.Nxe5 is the best move here, although it's definitely the most forceful one. Here's Cfish-dev with multi-pv = 2. I'll let the search continue. So far, Nxe5 is still preferred. +1.62 3. Nxe5 ...
by Karol Majewski
Wed Aug 08, 2018 10:22 pm
Forum: Computer Chess Club: General Topics
Topic: analysis of 1.e4 e5 2.Nf3 f6
Replies: 25
Views: 3852

Re: analysis of 1.e4 e5 2.Nf3 f6

Stockfish does not see a clear win for white even after a long time. I wonder if computers can win GM's with black from that position. FEN: rnbqkbnr/pppp2pp/5p2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 0 3 Stockfish_18062110_x64_modern: 1/1 00:00 136 68k +1.44 3.d4 2/2 00:00 201 101k +2.58 3.d4 exd4 ...
by Karol Majewski
Wed Aug 08, 2018 7:32 am
Forum: Computer Chess Club: General Topics
Topic: 3497 elo Leela, possibly 4th best chess engine now!!
Replies: 21
Views: 3319

Re: 3497 elo Leela, possibly 4th best chess engine now!!

OK, so I have this CPU version of LC0 v 0.16 (blas). How strong is it on a single CPU with the latest network (573)? Maybe Fruit 2.1 level in CCRL 40/4 conditions. Haven't checked on CPU long time. Also, always specify TC. Lc0 0.16 on 1060 (net 570) that gets 7200nps is around 29% vs. latest SFdev ...
by Karol Majewski
Tue Aug 07, 2018 3:24 pm
Forum: Computer Chess Club: General Topics
Topic: 3497 elo Leela, possibly 4th best chess engine now!!
Replies: 21
Views: 3319

Re: 3497 elo Leela, possibly 4th best chess engine now!!

OK, so I have this CPU version of LC0 v 0.16 (blas). How strong is it on a single CPU with the latest network (573)?
by Karol Majewski
Fri Aug 03, 2018 4:18 pm
Forum: Computer Chess Club: General Topics
Topic: TCEC season 13, 2 NN engines will be participating, Leela and Deus X
Replies: 182
Views: 25494

Re: TCEC season 13, 2 NN engines will be participating, Leela and Deus X

May the 1st 2019 on Chessbase.com:

DeusX 1, the first ever neural network chess engine, is now available on Chessbase. Written by Albert Silver is now the strongest chess engine on the planet (~3700 Elo). Click here to get 20% discount for DeusX 1 and get it for only 2400$.