Can any computer program figure this out? So far none ever

[James Swinney]

Geschrieben von: / Posted by: James Swinney at 16 April 2000 19:36:57:
Here is a brilliant little problem that a friend of mine came up over 10 years
ago that we have tried on countless chess progams and none have ever figured this out. I tried it on Fritz 5.32 with 64 meg hash tables overnight and it blew up at the 41st ply !!
Here is the FEN
6bn/2k2prq/5prp/5pbn/5p1p/1Kp2PpP/2P3P1/8 w - - 0 1
The problem is white only sees that he is down tons of material and is quite
content to find a draw by perpetual check after queening his pawn. While a human would see that all of blacks pieces are useless and play it out as a won king and pawn ending.
Please try this and see what results you get.
James

[Hudson R]

Geschrieben von: / Posted by: Hudson R at 17 April 2000 03:12:19:
Als Antwort auf: / As an answer to: Can any computer program figure this out? So far none ever have.(FEN) geschrieben von: / posted by: James Swinney at 16 April 2000 19:36:57:
sorry, my english is not good. "blew up at the 41st ply" means solved at 41st ply? or does it mean Fritz didn't solve at all?

Here is a brilliant little problem that a friend of mine came up over 10 years
ago that we have tried on countless chess progams and none have ever figured this out. I tried it on Fritz 5.32 with 64 meg hash tables overnight and it blew up at the 41st ply !!
Here is the FEN
6bn/2k2prq/5prp/5pbn/5p1p/1Kp2PpP/2P3P1/8 w - - 0 1
The problem is white only sees that he is down tons of material and is quite
content to find a draw by perpetual check after queening his pawn. While a human would see that all of blacks pieces are useless and play it out as a won king and pawn ending.
Please try this and see what results you get.
James

[James Swinney]

Geschrieben von: / Posted by: James Swinney at 17 April 2000 18:52:47:
Als Antwort auf: / As an answer to: Re: Can any computer program figure this out? So far none ever have.(FEN) geschrieben von: / posted by: Hudson R at 17 April 2000 03:12:19:

sorry, my english is not good. "blew up at the 41st ply" means solved at 41st ply? or does it mean Fritz didn't solve at all?

That just means my Fritz program sent a error message and stopped
processsing at that point. Not sure why as I have 128 megs ram and had
the Hash tables set to 64 megs, oh well.
James Swinney

[Andreas S.]

Geschrieben von: / Posted by: Andreas S. at 18 April 2000 21:00:11:
Als Antwort auf: / As an answer to: Can any computer program figure this out? So far none ever have.(FEN) geschrieben von: / posted by: James Swinney at 16 April 2000 19:36:57:

Here is a brilliant little problem that a friend of mine came up over 10 years
ago that we have tried on countless chess progams and none have ever figured this out. I tried it on Fritz 5.32 with 64 meg hash tables overnight and it blew up at the 41st ply !!
Here is the FEN
6bn/2k2prq/5prp/5pbn/5p1p/1Kp2PpP/2P3P1/8 w - - 0 1
The problem is white only sees that he is down tons of material and is quite
content to find a draw by perpetual check after queening his pawn. While a human would see that all of blacks pieces are useless and play it out as a won king and pawn ending.
Please try this and see what results you get.
James

after like 5mins Fritz 6 shows a mate although in "100" haha, but while mating he will find a shorter way of course
Andreas