Chess.com 2018 computer chess championship

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Nay Lin Tun
Posts: 530
Joined: Mon Jan 16, 2012 5:34 am

Re: Chess.com 2018 computer chess championship

Post by Nay Lin Tun » Wed Sep 19, 2018 2:34 pm

Jhoravi wrote:
Wed Sep 19, 2018 2:19 pm
Disallowing update between stages will just show a similar result from stage 1.
Not exactly similar. She will definately get better due to
1. Ponder off (Pondering On hit her Time Management algorithm and her TM was terrible with in stage 1. I guess she is one that suffer most with Ponder ON)
2. She is generally drawish. ( her scores will relatively improve more cos other engines will also draw more in stage 2).

Nay Lin Tun
Posts: 530
Joined: Mon Jan 16, 2012 5:34 am

Re: Chess.com 2018 computer chess championship

Post by Nay Lin Tun » Wed Sep 19, 2018 2:46 pm

So far, she is the one that can positionally outplay Stockfish and almost got the chance to win vs SF.

(book moves, 2 moves )
At move 43. She played Qd2 and draw. In fact the game was forced win with +3.00 on depth 50+ analysis with SF.
Winning variation was, 43.Qe2! Rxc3 44.Qb5! Qf7 45.Bg5! Qe6 46.Qa4 Qf7 47.Qa1 Rc2 48.Qa6 Nb4 49.Qa4 Nxd5 50.Qxc2 Rxd6 51.Qc8+ Qf8 52.Qb7 Qf7 53.Qa8+ Qf8 54.Qxa7 Qf7 55.Qa8+ Qf8 56.Qa2 Qf7 57.Bf4! Nxf4 58.Qa8+ Qf8 59.Qxf8+ Kxf8 60.Rxd6 and so on

(Also, she missed win against Komodo in stage 1 as well. )

chessdev
Posts: 31
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Re: Chess.com 2018 computer chess championship

Post by chessdev » Wed Sep 19, 2018 3:23 pm

Thanks to everyone interested in the CCCC. If you are interested in getting involved, let us know. We are looking for an official TD/manager, a CuteChess developer, and chat moderators.

Please fill out this form and we will get back to you. Cheers!

https://goo.gl/forms/dgFiej0h4NMMuzox2

Uri Blass
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Joined: Wed Mar 08, 2006 11:37 pm
Location: Tel-Aviv Israel

Re: Chess.com 2018 computer chess championship

Post by Uri Blass » Wed Sep 19, 2018 3:56 pm

Jhoravi wrote:
Wed Sep 19, 2018 2:19 pm
Disallowing update between stages will just show a similar result from stage 1.
I understood that updates are not allowed and it is the same lc0 as stage 1 and also the same stockfish as stage 1.

Did I understand wrong?

In any case I think regardless of time management that ponder off means effectively shorter time control and shorter time control is going to help lc0.
Inspite of it I guess lc0 is going to get only 4th place.

it now shares place 3-4 with komodo with 10 out of 17.

jp
Posts: 841
Joined: Mon Apr 23, 2018 5:54 am

Re: Chess.com 2018 computer chess championship

Post by jp » Wed Sep 19, 2018 4:04 pm

Uri Blass wrote:
Wed Sep 19, 2018 12:53 pm
Nay Lin Tun wrote:
Wed Sep 19, 2018 11:22 am
jp wrote:
Wed Sep 19, 2018 11:08 am
Milos wrote:
Mon Sep 17, 2018 4:10 pm
jkiliani wrote:
Mon Sep 17, 2018 2:33 pm
Lc0 now has a training run using tablebase rescoring for training, rather soon we should be able to see improvements in endgame play from this.
And you still keep "0" in the name, what a joke...
I see it's test30 that has TB cheating. If that goes over to the main net, it'll be a ridiculous decision totally against the written first goal of the Lc0 project.
I first goal of Lco to follow A0 was almost complete since 10xxxx series.( Simulation tests showed that Leela was very close to A0, within 50 elo level, A0 and SF 8 were history of 1 year ago anyway)

Second goal is to fight for No 1 and now she is among big 3 level in CCCC.

Series of 20xxx , and 30xxxx networks are aiming to be No 1. (Leela should be no 1 in 2019)
I disagree.

A0 was known to scale well and to be weak at blitz.
I read that it is the opposite with LC0 so LC0 has clearly something different from A0.


Edit:
I also disagree that Leela should be number 1 in 2019.
Other programs also improve and in any case I cannot define Leela to be number 1 based on unequal hardware competition.
Yep, needs full agreement from everyone, not just unconfirmed claims from one or two that Lc0 with A0 hardware would beat SF8. The claimed A0 scaling, which is not good anyway, needs to be shown by Lc0 too.
Some say Lc0 flatlines above 400k nodes per move.

Unless devs & everyone else are 100% certain Lc0 cannot improve any further, they shouldn't add things, or we won't know how far the claimed A0 approach can go.
Have the devs stated opinions on this?

Nay Lin Tun
Posts: 530
Joined: Mon Jan 16, 2012 5:34 am

Re: Chess.com 2018 computer chess championship

Post by Nay Lin Tun » Wed Sep 19, 2018 4:32 pm

Very close result among top 4!
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chessdev
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Re: Chess.com 2018 computer chess championship

Post by chessdev » Wed Sep 19, 2018 8:22 pm

Next event will start right around October 1st. We will have all new versions of all engines at that time.

We are leaning toward doing a shorter Blitz event. I know that many of you have mostly been focused on other events with LONG time controls. What are your thoughts on Blitz (like 5|2)?

jp
Posts: 841
Joined: Mon Apr 23, 2018 5:54 am

Re: Chess.com 2018 computer chess championship

Post by jp » Wed Sep 19, 2018 8:57 pm

chessdev wrote:
Wed Sep 19, 2018 8:22 pm
We are leaning toward doing a shorter Blitz event. I know that many of you have mostly been focused on other events with LONG time controls. What are your thoughts on Blitz (like 5|2)?
The thing with blitz is that many people here can do that on their own computers. People can't do long time control events on their own computers because they don't have the hardware. So blitz events are less valuable.

Nay Lin Tun
Posts: 530
Joined: Mon Jan 16, 2012 5:34 am

Re: Chess.com 2018 computer chess championship

Post by Nay Lin Tun » Wed Sep 19, 2018 10:56 pm

Another aggressive crazy game against SF with multiple pawn sacrifices as usual. Her games are always exciting as she play unexpected /different style than AB engines.
With her aggressive attack, both kings are dancing around the board.


ouachita
Posts: 454
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Location: Ritz-Carlton, NYC
Full name: Bobby Johnson

Re: Chess.com 2018 computer chess championship

Post by ouachita » Thu Sep 20, 2018 12:40 am

zullil wrote:
Sun Aug 19, 2018 2:21 pm
kranium wrote:
Sun Aug 19, 2018 2:18 pm
zullil wrote:
Sun Aug 19, 2018 1:00 pm
Thanks. I don't understand the choice to enable pondering. The server has 48 physical cores. Each engine will run 46 threads. So with pondering on, 92 threads will be running on only 48 physical cores. Seems like a bad idea to me.
It's called 'hyperthreading' Louis, an Intel technology...each physical core = 2 logical cores
https://en.wikipedia.org/wiki/Hyper-threading
I'm quite familiar with hyperthreading. My concerns remain. :D
Your concerns are justified. I've lost two games in the last five years. I used HT for a few moves in both, and am convinced HT resulted in weak moves resulting is loss. I otherwise never use HT.
SIM, PhD, MBA, PE

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