Handicap match: Rybka 3 and GM Dzindzidashvili started!

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

User avatar
AdminX
Posts: 6363
Joined: Mon Mar 13, 2006 2:34 pm
Location: Acworth, GA

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by AdminX »

Dr.Wael Deeb wrote: "and it plays black all the time...."
:P
:shock: :shock: Don't most computers play Black all the time??? Or is Fritz just acting like a little B!tch?? :lol: :lol: :lol:
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers
Top
User avatar
Dr.Wael Deeb
Posts: 9773
Joined: Wed Mar 08, 2006 8:44 pm
Location: Amman,Jordan

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by Dr.Wael Deeb »

AdminX wrote:
Dr.Wael Deeb wrote: "and it plays black all the time...."
:P
:shock: :shock: Don't most computers play Black all the time??? Or is Fritz just acting like a little B!tch?? :lol: :lol: :lol:
:lol:

:P
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
Top
User avatar
fern
Posts: 8755
Joined: Sun Feb 26, 2006 4:07 pm

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by fern »

Clearly this guy, no enough contented with the advantage given to him -a pawn and the whites all the time- consider neccesary to dug in deep.
What a shame!

Fernando
Top
User avatar
Dr.Wael Deeb
Posts: 9773
Joined: Wed Mar 08, 2006 8:44 pm
Location: Amman,Jordan

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by Dr.Wael Deeb »

fern wrote:Clearly this guy, no enough contented with the advantage given to him -a pawn and the whites all the time- consider neccesary to dug in deep.
What a shame!
Fernando
A beautiful posting Fernando :D
True to hell....
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….
Top
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by Terry McCracken »

fern wrote:Clearly this guy, no enough contented with the advantage given to him -a pawn and the whites all the time- consider neccesary to dug in deep.
What a shame!

Fernando
In the opening a Queen's Rook Pawn isn't worth a S*!*, in fact it helps the computer by giving it a half-open Queen's Rook File!!!

They are cheating! :P
Top
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by bob »

George Tsavdaris wrote:
bob wrote:However, all those that think the computer positionally outplays top GM players should look at this game carefully.
No, this game is not appropriate for that kind of conclusions.
If you haven't noticed, it was a handicap game. Rybka had black and didn't had the f-Pawn from the start, which is a HUGE handicap.
But black doesn't have to play to completely block things up if he "thinks" he is better. That was my point. Computers walk into these kinds of positions all the time against humans that are willing to push thing in this direction.

So it's logical that the GM outplayed Rybka 3 for a big part of the game as without f-Pawn black's play is absolutely paralyzed!

Roman isn't a "top GM" today. And an oversight brings him down as was discussed previously...
Actually Rybka 3 already had an advantage. The mistake just killed white immediately.....
What advantage do you see??? As a human I see white with a big space advantage, and not pushed back into a corner.
Top
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by bob »

Jeroen wrote:This is a handicap match, Bob. Without pawn f7 you are material down plus you are positionally worse. So white starts with an advantage of at least +1,25 at the beginning of the game and black needs white mistakes to draw or even win the game.
I understand that. But I have played plenty of "odds matches" against humans over the years, and I knew that I was a better player, and I was not going to let them lock things up and strangle me... the difference between a human and a computer is wide in that regard...
Top
Uri Blass
Posts: 11154
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by Uri Blass »

bob wrote:
Jeroen wrote:This is a handicap match, Bob. Without pawn f7 you are material down plus you are positionally worse. So white starts with an advantage of at least +1,25 at the beginning of the game and black needs white mistakes to draw or even win the game.
I understand that. But I have played plenty of "odds matches" against humans over the years, and I knew that I was a better player, and I was not going to let them lock things up and strangle me... the difference between a human and a computer is wide in that regard...
It does not prove superior positional undersanding of humans.

It is possible that even using the 31 piece tablebases is not going to help to avoid blocking the position because the slowest way to lose is going to allow the opponent to block the position.

Computers are basically not good at handicap games because they do not consider the fact that their opponent may miss something and inspite of this disadvantage Rybka won the match 2.5:1.5 when the GM could not win a single game.

Rybka proved to be superior even in closed positions when rybka saw that the GM can beat her but GM Dzindzichashvili did not see the right moves

52.h5 could win the game for Dzindzi in game 3 and I understood that rybka3 could find it unlike GM Dzindzichashvili

Dzindzichashvili,R - Rybka 3, Dzindzi-Rybka handicap match 2008
[d]3rb3/4k1rp/2p1pNp1/2P1K1P1/1p1P1P1P/pP5R/P6R/8 w - - 0 1

Analysis by Rybka 2.3.2a 32-bit :

52.Rh2-e2 Ke7-f8
± (1.36) Depth: 5 00:00:00
52.Rh2-e2 Ke7-f8 53.Ke5-e4
± (1.38) Depth: 6 00:00:00 7kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5
+- (1.51) Depth: 6 00:00:00 8kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4
+- (1.52) Depth: 7 00:00:00 9kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7
+- (1.46) Depth: 8 00:00:00 10kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2
+- (1.44) Depth: 9 00:00:00 16kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2 Ke8-f8
+- (1.46) Depth: 10 00:00:00 23kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2 Ke8-f8 57.Rh5-h6
+- (1.45) Depth: 11 00:00:00 32kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2 Ke8-f8 57.Rh5-h6 Kf8-g7
+- (1.49) Depth: 12 00:00:00 51kN
52.Ke5-e4 Ke7-f8 53.h4-h5 g6xh5 54.Nf6xe8 Rd8xe8 55.Rh3xh5 Kf8-g8 56.Rh5-h6 Rg7-e7 57.Ke4-d3
+- (1.56) Depth: 12 00:00:01 93kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-f8
+- (1.65) Depth: 13 00:00:01 133kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6
+- (1.64) Depth: 14 00:00:02 155kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6 Ke8-d7
+- (1.65) Depth: 15 00:00:03 205kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6 Ke8-e7
+- (1.65) Depth: 16 00:00:04 284kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6 Ke8-e7
+- (1.69) Depth: 17 00:00:06 395kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 18 00:00:33 2450kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 19 00:00:39 2899kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 20 00:00:52 3784kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 21 00:01:21 5914kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 22 00:01:59 8576kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 23 00:03:12 13754kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 24 00:05:26 23486kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.04) Depth: 24 00:11:32 48294kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.09) Depth: 25 00:14:21 57818kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh5xh7 Rd5xd4+ 57.Ke4-e5 Rd7-d5+ 58.Ke5xe6 Rd4-e4+
+- (2.98) Depth: 26 00:17:41 71690kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.09) Depth: 27 00:23:00 92680kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.22) Depth: 28 00:33:57 130706kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.23) Depth: 29 00:54:00 203302kN

(so k, 29.07.2008)


Uri
Top
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by bob »

Uri Blass wrote:
bob wrote:
Jeroen wrote:This is a handicap match, Bob. Without pawn f7 you are material down plus you are positionally worse. So white starts with an advantage of at least +1,25 at the beginning of the game and black needs white mistakes to draw or even win the game.
I understand that. But I have played plenty of "odds matches" against humans over the years, and I knew that I was a better player, and I was not going to let them lock things up and strangle me... the difference between a human and a computer is wide in that regard...
It does not prove superior positional undersanding of humans.

It is possible that even using the 31 piece tablebases is not going to help to avoid blocking the position because the slowest way to lose is going to allow the opponent to block the position.
Then you are simply not following the discussion. Have you ever played weaker players and given them material odds to help equalize? If so, have you _ever_ played such moves to totally lock up the pawn structure so that you can't use your superior experience and tactical ability to beat them? Computers fall into these stupid positions all the time, whether it be in odds matches or heads-up. And it clearly shows that humans have a better grasp of what is going on than the computers do...


Computers are basically not good at handicap games because they do not consider the fact that their opponent may miss something and inspite of this disadvantage Rybka won the match 2.5:1.5 when the GM could not win a single game.

Rybka proved to be superior even in closed positions when rybka saw that the GM can beat her but GM Dzindzichashvili did not see the right moves
Sorry but that is a _poor_ definition of "superior" when you see ways your opponent can beat you because you have played poorly in previous moves.

52.h5 could win the game for Dzindzi in game 3 and I understood that rybka3 could find it unlike GM Dzindzichashvili

Dzindzichashvili,R - Rybka 3, Dzindzi-Rybka handicap match 2008
[d]3rb3/4k1rp/2p1pNp1/2P1K1P1/1p1P1P1P/pP5R/P6R/8 w - - 0 1

Analysis by Rybka 2.3.2a 32-bit :

52.Rh2-e2 Ke7-f8
± (1.36) Depth: 5 00:00:00
52.Rh2-e2 Ke7-f8 53.Ke5-e4
± (1.38) Depth: 6 00:00:00 7kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5
+- (1.51) Depth: 6 00:00:00 8kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4
+- (1.52) Depth: 7 00:00:00 9kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7
+- (1.46) Depth: 8 00:00:00 10kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2
+- (1.44) Depth: 9 00:00:00 16kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2 Ke8-f8
+- (1.46) Depth: 10 00:00:00 23kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2 Ke8-f8 57.Rh5-h6
+- (1.45) Depth: 11 00:00:00 32kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh2-d2 Ke8-f8 57.Rh5-h6 Kf8-g7
+- (1.49) Depth: 12 00:00:00 51kN
52.Ke5-e4 Ke7-f8 53.h4-h5 g6xh5 54.Nf6xe8 Rd8xe8 55.Rh3xh5 Kf8-g8 56.Rh5-h6 Rg7-e7 57.Ke4-d3
+- (1.56) Depth: 12 00:00:01 93kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-f8
+- (1.65) Depth: 13 00:00:01 133kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6
+- (1.64) Depth: 14 00:00:02 155kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6 Ke8-d7
+- (1.65) Depth: 15 00:00:03 205kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6 Ke8-e7
+- (1.65) Depth: 16 00:00:04 284kN
52.Ke5-e4 Be8-f7 53.Ke4-e3 Rd8-f8 54.h4-h5 g6xh5 55.Nf6xh5 Bf7xh5 56.Rh3xh5 Rf8-f7 57.Ke3-e4 Ke7-e8 58.Rh5-h6 Ke8-e7
+- (1.69) Depth: 17 00:00:06 395kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 18 00:00:33 2450kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 19 00:00:39 2899kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 20 00:00:52 3784kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 21 00:01:21 5914kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 22 00:01:59 8576kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 23 00:03:12 13754kN
52.Ke5-e4 Rg7-f7 53.Rh3-e3 Rd8-b8 54.Ke4-d3 Rf7xf6 55.g5xf6+ Ke7xf6 56.Rh2-e2 Be8-f7 57.Re3-e5 Rb8-d8 58.Kd3-c4 Rd8-b8
+- (1.87) Depth: 24 00:05:26 23486kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.04) Depth: 24 00:11:32 48294kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.09) Depth: 25 00:14:21 57818kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rg7-d7 56.Rh5xh7 Rd5xd4+ 57.Ke4-e5 Rd7-d5+ 58.Ke5xe6 Rd4-e4+
+- (2.98) Depth: 26 00:17:41 71690kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.09) Depth: 27 00:23:00 92680kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.22) Depth: 28 00:33:57 130706kN
52.h4-h5 g6xh5 53.Nf6xe8 Ke7xe8 54.Rh3xh5 Rd8-d5+ 55.Ke5-e4 Rd5-d7 56.Rh5-h6 Rg7-e7 57.Ke4-d3 Ke8-d8 58.Rh2-e2 Re7-f7
+- (3.23) Depth: 29 00:54:00 203302kN

(so k, 29.07.2008)


Uri
The point is, it had played into a dead lost position. And, as is generally the case, the GM made an error. Roman is probably more likely to make errors like this than younger GM players, as age is a factor. But regardless of the opponent, even if it were Kasparov or Fischer in their prime, they still make mistakes... And the computer benefits from that more than its lack of positional understanding in these kinds of positions.
Top
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Handicap match: Rybka 3 and GM Dzindzidashvili started!

Post by bob »

BTW, missing h4 is simply a tactical oversight. I ran this on Crafty on a fairly fast box and got this:

Code: Select all


               24    21.67   2.44   1. Rc2 Bf7 2. Rc4 Rb8 3. Rc1 Rd8 4.
                                    Rhh1 Rf8 5. Rhg1 Rb8 6. Rgf1 Rh8 7.
                                    Rc4 Rb8 8. Rh1 Rb5 9. Rc2 Rb8 10. Rhh2
                                    <HT> (s=2)
               24     1:26   2.77   1. h5 gxh5 2. Nxe8 Kxe8 3. Rxh5 Rd5+
                                    4. Ke4 Rgd7 5. Rxh7 Rxd4+ 6. Ke5 R7d5+
                                    7. Kxe6 Re4+ 8. Kf6 Rxf4+ 9. Kg6 Re5
                                    10. Rb7 Re6+ 11. Kg7 Re7+ 12. Rxe7+
                                    Kxe7 13. g6 Ke6 14. Kh7 Kd5 15. g7
                                    Rf7 16. Rf2 Rxf2 17. g8=Q+ Kxc5
               24->   1:38   2.77   1. h5 gxh5 2. Nxe8 Kxe8 3. Rxh5 Rd5+
                                    4. Ke4 Rgd7 5. Rxh7 Rxd4+ 6. Ke5 R7d5+
                                    7. Kxe6 Re4+ 8. Kf6 Rxf4+ 9. Kg6 Re5
                                    10. Rb7 Re6+ 11. Kg7 Re7+ 12. Rxe7+
                                    Kxe7 13. g6 Ke6 14. Kh7 Kd5 15. g7
                                    Rf7 16. Rf2 Rxf2 17. g8=Q+ Kxc5
              time=6:44  mat=1  n=9351064166  fh=89%  nps=23.1M
              ext-> check=455.2M 1rep=21.0M mate=2.6M pp=0 reduce=469.0M/786.1M
              predicted=0  evals=1901.1M  50move=0  EGTBprobes=0  hits=0
Not surprised a GM would overlook that kind of deep tactic in a complicated position...
Top

Return to “Computer Chess Club: General Topics”