Top engines without tablebases don't play as good as top GMs

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

Moderators: hgm, Rebel, chrisw

User avatar
Houdini
Posts: 1471
Joined: Tue Mar 16, 2010 12:00 am

Re: Top engines without tablebases don't play as good as top

Post by Houdini »

pichy wrote:Top engines without tablebases don't play the ending as good as top GMs. In this position from the game Tarrasch Vs E. Thorold most engines without tablebase will play or select to play 26. Re7+ and after the King move, Kd6 White will pick up the pawn 27.Rxg7, but after Black Rook take 27....Rxd4, then White take the other pawn at 28. Rxh7 and then Black will check ....Rd1+ 29. Kf2, Rd2+ 30.Kf3, Rxb2 and black will have a good drawing chances, his Rook being so active.

PS: But on this position Tarrasch played A star move! 26.Re3! in which White protects the important passed Pawn, While keeping the adverse Rook out.
[D]4R3/2k3pp/pp6/8/3r4/3P4/PP4PP/6K1 w - - 0 1

Interesting position, but I don't see what's wrong with 26.Re7+.
Houdini suggests the following main line:

Code: Select all

1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2
5.Rxh7 Rxb2 6.h5 Ke5 7.h6 Rb4 8.Kg3 Kf6
9.Rg7 Rd4 10.a4 Rd1 11.Rb7 Rd6 12.h7 Rd8 
13.Rxb6+ Kg7 14.Rxa6 Kxh7 15.a5 Rd5 
16.Kh4 Rd2 17.g4 Rd5 18.g5 Rd2 19.Rf6
The eval is over +2.5, it should be 1-0.

I really doubt there's any human GM that can play this position as well as modern engines on decent hardware.

Robert
MM
Posts: 766
Joined: Sun Oct 16, 2011 11:25 am

Re: Top engines without tablebases don't play as good as top

Post by MM »

Houdini wrote:
pichy wrote:Top engines without tablebases don't play the ending as good as top GMs. In this position from the game Tarrasch Vs E. Thorold most engines without tablebase will play or select to play 26. Re7+ and after the King move, Kd6 White will pick up the pawn 27.Rxg7, but after Black Rook take 27....Rxd4, then White take the other pawn at 28. Rxh7 and then Black will check ....Rd1+ 29. Kf2, Rd2+ 30.Kf3, Rxb2 and black will have a good drawing chances, his Rook being so active.

PS: But on this position Tarrasch played A star move! 26.Re3! in which White protects the important passed Pawn, While keeping the adverse Rook out.
[D]4R3/2k3pp/pp6/8/3r4/3P4/PP4PP/6K1 w - - 0 1

Interesting position, but I don't see what's wrong with 26.Re7+.
Houdini suggests the following main line:

Code: Select all

1.Re7+ Kd6 2.Rxg7 Rxd4 3.h4 Rd1+ 4.Kh2 Rd2
5.Rxh7 Rxb2 6.h5 Ke5 7.h6 Rb4 8.Kg3 Kf6
9.Rg7 Rd4 10.a4 Rd1 11.Rb7 Rd6 12.h7 Rd8 
13.Rxb6+ Kg7 14.Rxa6 Kxh7 15.a5 Rd5 
16.Kh4 Rd2 17.g4 Rd5 18.g5 Rd2 19.Rf6
The eval is over +2.5, it should be 1-0.

I really doubt there's any human GM that can play this position as well as modern engines on decent hardware.

Robert
Where do you (does your machine) see 2...Rxd4 (???). The black rook is already in d4.
MM
MM
Posts: 766
Joined: Sun Oct 16, 2011 11:25 am

Re: Top engines without tablebases don't play as good as top

Post by MM »

:lol: i see you quickly edited your post....anyway i wonder which engine are you using because.....


Inserisci nuova partita
[D]4R3/2k3pp/pp6/8/3r4/3P4/PP4PP/6K1 w - - 0 1

Analysis by Houdini 2.0c Pro x64:

1.Te7+ Rc6 2.Txg7 h5 3.Tg6+ Rc7 4.Tg3 a5 5.Th3 h4 6.a3 b5 7.b3 Rc6 8.Rf2 Rc5 9.Re3 Tg4 10.Rf3 Td4 11.Rf2 Rc6 12.Re3 Tg4 13.Rf3 Td4 14.Re2 Tg4 15.Rf2 Td4 16.Re3
+/- (0.77) Profondità: 32/61 00:16:05 13032mN

Regards
MM
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Top engines without tablebases don't play as good as top

Post by Terry McCracken »

Houdini wrote:
pichy wrote:Top engines without tablebases don't play the ending as good as top GMs. In this position from the game Tarrasch Vs E. Thorold most engines without tablebase will play or select to play 26. Re7+ and after the King move, Kd6 White will pick up the pawn 27.Rxg7, but after Black Rook take 27....Rxd4, then White take the other pawn at 28. Rxh7 and then Black will check ....Rd1+ 29. Kf2, Rd2+ 30.Kf3, Rxb2 and black will have a good drawing chances, his Rook being so active.

PS: But on this position Tarrasch played A star move! 26.Re3! in which White protects the important passed Pawn, While keeping the adverse Rook out.
[D]4R3/2k3pp/pp6/8/3r4/3P4/PP4PP/6K1 w - - 0 1

Interesting position, but I don't see what's wrong with 26.Re7+.
Houdini suggests the following main line:

Code: Select all

1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2
5.Rxh7 Rxb2 6.h5 Ke5 7.h6 Rb4 8.Kg3 Kf6
9.Rg7 Rd4 10.a4 Rd1 11.Rb7 Rd6 12.h7 Rd8 
13.Rxb6+ Kg7 14.Rxa6 Kxh7 15.a5 Rd5 
16.Kh4 Rd2 17.g4 Rd5 18.g5 Rd2 19.Rf6
The eval is over +2.5, it should be 1-0.

I really doubt there's any human GM that can play this position as well as modern engines on decent hardware.

Robert
Are you serious? Kasparov use to play these simple positions in his sleep, so did many of the elite past and present.

How many super grandmasters post here? None?
Terry McCracken
User avatar
Houdini
Posts: 1471
Joined: Tue Mar 16, 2010 12:00 am

Re: Top engines without tablebases don't play as good as top

Post by Houdini »

Terry McCracken wrote:Are you serious? Kasparov use to play these simple positions in his sleep, so did many of the elite past and present.

How many super grandmasters post here? None?
To advance the discussion beyond a shouting contest, let's discuss the "Tarrasch" point of view that Re3 is superior to Re7+, a view that is not shared by Houdini.

Can you explain the following:
1) How does white win after 1.Re3 if black replies Kd6 and Rd5.
2) How does black have "good drawing chances" after 1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2 5.Rxh7 Rxb2 6.h5 - Houdini thinks that the final position is a straightforward win for white.

Robert
User avatar
Don
Posts: 5106
Joined: Tue Apr 29, 2008 4:27 pm

Re: Top engines without tablebases don't play as good as top

Post by Don »

Houdini wrote:
Terry McCracken wrote:Are you serious? Kasparov use to play these simple positions in his sleep, so did many of the elite past and present.

How many super grandmasters post here? None?
To advance the discussion beyond a shouting contest, let's discuss the "Tarrasch" point of view that Re3 is superior to Re7+, a view that is not shared by Houdini.

Can you explain the following:
1) How does white win after 1.Re3 if black replies Kd6 and Rd5.
2) How does black have "good drawing chances" after 1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2 5.Rxh7 Rxb2 6.h5 - Houdini thinks that the final position is a straightforward win for white.

Robert
I think players tend to "over-romanticize" top players. When I was a kid I read books that made it seem like these guys were practically god's.

We have the ELO system which does a fair job of quantifying the skills of the top players and hopefully that demystifies them somewhat. But whether people like it or not, computers have passed them (and it's been a few years already) and the gap will only get wider.

Don
Capital punishment would be more effective as a preventive measure if it were administered prior to the crime.
User avatar
Dragulic
Posts: 53
Joined: Tue Mar 06, 2012 3:28 pm

Re: Top engines without tablebases don't play as good as top

Post by Dragulic »

Houdini wrote:...
Houdini - Tarrasch 1-0
MM
Posts: 766
Joined: Sun Oct 16, 2011 11:25 am

Re: Top engines without tablebases don't play as good as top

Post by MM »

Houdini wrote:
Terry McCracken wrote:Are you serious? Kasparov use to play these simple positions in his sleep, so did many of the elite past and present.

How many super grandmasters post here? None?
To advance the discussion beyond a shouting contest, let's discuss the "Tarrasch" point of view that Re3 is superior to Re7+, a view that is not shared by Houdini.

Can you explain the following:
1) How does white win after 1.Re3 if black replies Kd6 and Rd5.
2) How does black have "good drawing chances" after 1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2 5.Rxh7 Rxb2 6.h5 - Houdini thinks that the final position is a straightforward win for white.





Robert


2) The main line, according with Houdini 2.0c, is broken:




[D]8/6Rp/pp1k4/8/3r4/3P4/PP4PP/6K1 b - - 0 1

Analysis by Houdini 2.0c Pro x64:

2...h5 3.Tg6+ Rc7 4.Tg3 a5 5.Th3 h4 6.a3 b5 7.b3 Rd6 8.Rf1 Td5 9.Rf2 Tf5+ 10.Re3 Te5+ 11.Rd4 Td5+ 12.Re4 Te5+ 13.Rf3 Tf5+ 14.Re2 Te5+ 15.Te3 Tg5 16.Rf2 Td5 17.Tf3 Tc5 18.Tf6+ Re5 19.Th6 Tc2+ 20.Rf3 Rd4 21.Txh4+ Rxd3 22.g4
+/- (0.74) Profondità: 31/60 00:06:23 7378mN
MM
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Top engines without tablebases don't play as good as top

Post by Terry McCracken »

Don wrote:
Houdini wrote:
Terry McCracken wrote:Are you serious? Kasparov use to play these simple positions in his sleep, so did many of the elite past and present.

How many super grandmasters post here? None?
To advance the discussion beyond a shouting contest, let's discuss the "Tarrasch" point of view that Re3 is superior to Re7+, a view that is not shared by Houdini.

Can you explain the following:
1) How does white win after 1.Re3 if black replies Kd6 and Rd5.
2) How does black have "good drawing chances" after 1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2 5.Rxh7 Rxb2 6.h5 - Houdini thinks that the final position is a straightforward win for white.

Robert
I think players tend to "over-romanticize" top players. When I was a kid I read books that made it seem like these guys were practically god's.

We have the ELO system which does a fair job of quantifying the skills of the top players and hopefully that demystifies them somewhat. But whether people like it or not, computers have passed them (and it's been a few years already) and the gap will only get wider.

Don
When a computer can pose, on it's own, a top Endgame Study then I'll concur.
Terry McCracken
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Top engines without tablebases don't play as good as top

Post by Terry McCracken »

Houdini wrote:
Terry McCracken wrote:Are you serious? Kasparov use to play these simple positions in his sleep, so did many of the elite past and present.

How many super grandmasters post here? None?
To advance the discussion beyond a shouting contest, let's discuss the "Tarrasch" point of view that Re3 is superior to Re7+, a view that is not shared by Houdini.

Can you explain the following:
1) How does white win after 1.Re3 if black replies Kd6 and Rd5.
2) How does black have "good drawing chances" after 1.Re7+ Kd6 2.Rxg7 Rxd3 3.h4 Rd1+ 4.Kh2 Rd2 5.Rxh7 Rxb2 6.h5 - Houdini thinks that the final position is a straightforward win for white.

Robert
Kasparov said he doesn't understand, given the position. :lol:
Terry McCracken