Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAST!

Discussion of computer chess matches and engine tournaments.

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S.Taylor
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Joined: Thu Mar 09, 2006 3:25 am
Location: Jerusalem Israel

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by S.Taylor »

pacifist wrote:Ah ok then:). But I remember the final position was winning for Rybka, Stockfish then receives a gift from the gods to redeem himself :).
The fate of the match is anyway sealed, so it's not too serious now.

Martin also said on the chessbomb site that he was beginning to suspect what the results were all along, being that Stockfish seems to have got improprtionately lower succes than what had been seen earlier, and that it may have been what was leading to the crash.
OK, if the node count was much less, than first half of match, then this makes sense.

If not, then don't forget that it was also 3 straight losses near the start of the match (to SF) [unless they were low node count also].
ernest
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Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by ernest »

gerold wrote:Houdini in fast TC is about equal with R4.
In fast TC Houdini 1.03a is definitely slightly better than R4
S.Taylor
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Joined: Thu Mar 09, 2006 3:25 am
Location: Jerusalem Israel

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by S.Taylor »

ernest wrote:
gerold wrote:Houdini in fast TC is about equal with R4.
In fast TC Houdini 1.03a is definitely slightly better than R4
And how is it in long TC?
pacifist

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by pacifist »

Well game 45 could have been easy draw but white overestimated the extra knight and accepted the exchange of rooks :(. Anyway that compensates for game 42 :).
Martin Thoresen
Posts: 1833
Joined: Thu Jun 22, 2006 12:07 am

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by Martin Thoresen »

pacifist wrote:Well game 45 could have been easy draw but white overestimated the extra knight and accepted the exchange of rooks :(. Anyway that compensates for game 42 :).
Well, honestly I was seeing a draw in game 45. Surprised to see SF "blunder" like that. :(
pacifist

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by pacifist »

Yes, but I think that even Rybka could have lost it with white based on his evaluations. It's not really a blunder (let play f3 was just the last bad move of a bad plan) but a bad evaluation leading to a bad plan until it was too late. Still very interesting endgame to analyse if anyone takes the time :).
ernest
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Joined: Wed Mar 08, 2006 8:30 pm

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by ernest »

S.Taylor wrote:
ernest wrote:
gerold wrote:Houdini in fast TC is about equal with R4.
In fast TC Houdini 1.03a is definitely slightly better than R4
And how is it in long TC?
Well, we'll see in Martin's future match Houdini 1.03a against Stockfish 1.8 ! :)
Martin Thoresen
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Joined: Thu Jun 22, 2006 12:07 am

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by Martin Thoresen »

A picture from the live action of game 46, where SF is losing another endgame:

http://home.halden.net/mordor/match/ryb ... sh_g46.jpg
IGarcia
Posts: 543
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Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by IGarcia »

Nice game 47. Only one to go.

Was a good rival for R4. Score is under the one got Houdini 1.02 (made 21.5) but inside noise. I do think SF1.8 is same strong as houdini 1.02.

Next match SF1.8 vs Houdini 1.03a will be great too. And will be a pre-view for a possible next match.... H1.03a vs R4?

GL for stockfish in this last game.
Thanks Martin for hosting and bradcasting.

Ignacio.
pacifist

Re: Rybka 4 vs Stockfish 1.8 - Long TC Match - LIVE BROADCAS

Post by pacifist »

Nice rook sacrifice in the last game :) Impressive and unexpected! :)