On-line engine blitz tourney January

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mar
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Re: On-line engine blitz tourney January

Post by mar » Sun Jan 25, 2015 1:31 pm

Modern Times wrote:but you need to take some good luck when it comes your way, because sometimes it goes the other way !

An example of where things go wrong - in the game against Arasan, out of book at over -1 as I recall, which quickly got worse, and the game was over almost as soon as it started.
Yes this is very true and even more in blitz.
Not to mention that Texel and Rookie weren't playing this time.
I think Arasan played very strong and accurate so probably it would have won anyway. Haven't seen the first moves out of book though so can't judge.

Modern Times
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Re: On-line engine blitz tourney January

Post by Modern Times » Sun Jan 25, 2015 1:35 pm

Yes - I expected Cheng would lose to Arasan anyway, so the book didn't really matter.

mvk
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Re: On-line engine blitz tourney January

Post by mvk » Sun Jan 25, 2015 3:42 pm

mar wrote:Yes this is very true and even more in blitz.
Not to mention that Texel and Rookie weren't playing this time.
I was travelling for work this week. I tried to put Rookie online before I left, but there were connection problems. Hopefully it can join next month. But I have to make some improvements. The current version is stalled for 1 year now, and it starts to show.
[Account deleted]

Maarten Claessens
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Re: On-line engine blitz tourney January

Post by Maarten Claessens » Sun Jan 25, 2015 9:03 pm

Modern Times wrote:
mar wrote: A pity I don't have the pgn of that game to look at further to see what happened exactly.
Here it is:
[pgn]
[Event "ICS Rated blitz match"]
[Site "winboard.nl"]
[Date "2015.01.25"]
[Round "3"]
[White "ChengRB"]
[Black "ArasanX"]
[Result "0-1"]
[WhiteElo "2001"]
[BlackElo "2008"]
[TimeControl "300+1"]

1.d4 e6 2.c4 d5 3.Nf3 Nf6 4.g3 dxc4 5.Bg2 Nc6 6.Qa4 Bb4+ 7.Bd2 Nd5 8.Bxb4
Nxb4 9.a3 b5 10.Qxb5 Nc2+ 11.Kd2 Bd7 12.Qxc4 Nxa1 13.b4 a5 14.b5 e5 15.Nc3
Nxd4 16.Nxd4 exd4 17.Nd5 Nb3+ 18.Qxb3 O-O 19.Qc4 Rc8 20.Rc1 Re8 21.Nf4 Qe7
22.a4 Rcd8 23.Bf3 Qf6 24.Qxc7 d3 25.Qc3 Qh6 26.exd3 g5 27.Nd5 g4+ 28.Kd1
Bf5 29.Bh1 Qe6 30.Qd2 Rxd5 31.Bxd5 Qxd5 32.Qg5+ Kf8 33.Qh6+ Ke7 34.Qe3+
Be6 35.Rc7+ Kf8 36.Kc1 Rd8 37.Qh6+ Kg8 38.Qf4 Kg7 39.b6 h6 40.Qe3 Qa2 41.
Qe5+ Kg6 42.b7 Qxf2 43.Qxa5 Qf1+ 44.Kb2 Qxd3 45.Qc3 Qd5 46.Ka3 Qe4 47.Rc6
Qb1 48.Qb2 Rd3+ 49.Rc3 Rxc3+ 50.Qxc3 Qxb7 51.a5 f5 52.Qc2 Qb5 53.Qc3 Qb7
54.Qc2 Qe7+ 55.Ka4 Qd6 56.Qb2 Bd7+ 57.Kb3 Qd5+ 58.Kc2 Ba4+ 59.Kb1 Qxa5 60.
Qd4 Bb3 61.Qd6+ Kh5 62.Kb2 Qa2+ 63.Kc3 Qc2+ 64.Kb4 Qb2 65.Qe7 Ba2+ 66.Ka5
Qxh2 67.Qe8+ Kg5 68.Qe7+ Kg6 69.Qd6+ Kh5 70.Qd7 Qc2 71.Qe8+ Kg5 72.Qe7+
Kg6 73.Qd6+ Kh5 74.Qf6 Qc7+ 75.Kb5 Qc4+ 76.Ka5 Qd5+ 77.Kb4 Qe6 78.Qf8 Kg6
79.Qh8 f4 80.gxf4 Qg8 81.f5+ Kxf5 82.Qxh6 Qc4+ 83.Ka5 Qc7+ 84.Kb5 Qe5+ 85.
Ka4 Qf4+ 86.Qxf4+ Kxf4 87.Kb4 g3 88.Ka3 g2 89.Kxa2 g1=Q 90.Kb3 Ke4 91.Kb4
Qd4+ 92.Kb5 Kd5 93.Ka6 Kc6 94.Ka5 Qf4 95.Ka6 Qa4# 0-1
[\pgn]
Nothing is unstable (Lawrence Krauss)

Modern Times
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Re: On-line engine blitz tourney January

Post by Modern Times » Sun Jan 25, 2015 10:13 pm

Thanks. Just analysing that with Komodo, and Cheng's 12. Qxc4 is what caused the big change in evals in Arasan's favour. I don't know if that was a book move or not, impossible to know now.

mar
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Location: Czech Republic
Full name: Martin Sedlak

Re: On-line engine blitz tourney January

Post by mar » Sun Jan 25, 2015 11:08 pm

Thanks. Actually the blunder was 11. Kd2??
I initially though it could've been a problem with pondering but it can't -> if you ponder on bad move the opponent won't play it and you get a pondermiss, starting fresh.
So if cheng really played Kd2 it must have been due to a bug, possibly smp-related because here cheng only considers Kf1.

mar
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Location: Czech Republic
Full name: Martin Sedlak

Re: On-line engine blitz tourney January

Post by mar » Sun Jan 25, 2015 11:33 pm

Oh yes, found it: Kd2 was a book move.
But Qxc4 was played by the engine :)

Robert Pope
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Re: On-line engine blitz tourney January

Post by Robert Pope » Mon Jan 26, 2015 3:57 am

Henk wrote:
hgm wrote:
Henk wrote:I don't think it's much fun playing a tournament where almost all opponents play 500 ELO stronger. But I can always watch TV simultaneously.
Well, your engine is not SMP, right? And your PC probably has multiple cores. So if you want weak opponents, why not bring your own? Just pick a weak engine of your choice, and log that on as well. I will be there with 4 engines, as I have a quad. And in fact I might join NEG as well, as it doesn't use any CPU time anyway.
No it's too expensive. Maybe Skipper skips. So at least I forget about weak engines.
This wasn't a good month, but I would be interesting in joining in on one of these. So then we can have two 1700 engines battling it out, if you enter, Henk.

Modern Times
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Joined: Thu Jun 07, 2012 9:02 pm

Re: On-line engine blitz tourney January

Post by Modern Times » Mon Jan 26, 2015 4:32 am

mar wrote:Oh yes, found it: Kd2 was a book move.
But Qxc4 was played by the engine :)
OK thanks.

I've removed that book. It wasn't performance.bin, but something else.

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