Longest games

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

Moderators: hgm, Harvey Williamson, bob

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
chrisw
Posts: 1847
Joined: Tue Apr 03, 2012 2:28 pm

Re: Longest games

Post by chrisw » Thu Apr 25, 2019 9:40 pm

Henk wrote:
Thu Apr 25, 2019 9:11 pm
chrisw wrote:
Thu Apr 25, 2019 7:31 pm
Henk wrote:
Thu Apr 25, 2019 6:20 pm
chrisw wrote:
Thu Apr 25, 2019 2:44 pm
Henk wrote:
Thu Apr 25, 2019 11:15 am
At least it is in the CCC book of records:

Longest game posted on CCC.

25 april 2019: 359 moves

Congrats.


By the way longest human-human game 269 moves.
See: https://timkr.home.xs4all.nl/records/records.htm
Probably quite easy to write a world champion longest game creator. Self play, with win=loss, draw=loss, loss=loss, everything else scores 0.5 + 0.01 * moves since an irreversible move.
Maybe creating a long game creator is 'easy'. But probably one that generates the theoretical longest one not. Always difficult becoming a world champion.

Just post longest game and we'll see if it can be beaten.
There will be an almost infinite number of longest game. Length = 99 x maximum number of irreversible moves. 29 piece captures + max number of possible pawn pushes.
Don't understand. Where does 99 come from.
100 minus 1

Henk
Posts: 5712
Joined: Mon May 27, 2013 8:31 am

Re: Longest games

Post by Henk » Thu Apr 25, 2019 9:48 pm

chrisw wrote:
Thu Apr 25, 2019 9:40 pm
Henk wrote:
Thu Apr 25, 2019 9:11 pm
chrisw wrote:
Thu Apr 25, 2019 7:31 pm
Henk wrote:
Thu Apr 25, 2019 6:20 pm
chrisw wrote:
Thu Apr 25, 2019 2:44 pm
Henk wrote:
Thu Apr 25, 2019 11:15 am
At least it is in the CCC book of records:

Longest game posted on CCC.

25 april 2019: 359 moves

Congrats.


By the way longest human-human game 269 moves.
See: https://timkr.home.xs4all.nl/records/records.htm
Probably quite easy to write a world champion longest game creator. Self play, with win=loss, draw=loss, loss=loss, everything else scores 0.5 + 0.01 * moves since an irreversible move.
Maybe creating a long game creator is 'easy'. But probably one that generates the theoretical longest one not. Always difficult becoming a world champion.

Just post longest game and we'll see if it can be beaten.
There will be an almost infinite number of longest game. Length = 99 x maximum number of irreversible moves. 29 piece captures + max number of possible pawn pushes.
Don't understand. Where does 99 come from.
100 minus 1
ok and 100 = 2 * 50

By the way there is also rule of three times same position is a draw.

MikeB
Posts: 3267
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: Longest games

Post by MikeB » Sat May 04, 2019 2:18 pm

Henk wrote:
Thu Apr 25, 2019 11:15 am
At least it is in the CCC book of records:

Longest game posted on CCC.

25 april 2019: 359 moves

Congrats.


By the way longest human-human game 269 moves.
See: https://timkr.home.xs4all.nl/records/records.htm
New CCC record I suppose - just one move shy of 400.... be ready for some boredom, it became a 7 man syzygy draw at move 278. I always let the engines play to the bitter end. Each 500 game run is placed in its own folder, I just sort the text files by size to see which game was the longest. This 3 min + 1.8 sec per move game lasted just under 30 minutes, starting at 4:33 AM and finishing at 5:01 AM. it was a part of a 500 game overnight run.


Henk
Posts: 5712
Joined: Mon May 27, 2013 8:31 am

Re: Longest games

Post by Henk » Sun May 05, 2019 1:50 pm

Longest game posted on CCC:

1. May 4 2019: 399 moves MikeB
2. April 25 2019: 359 moves MikeB

Henk
Posts: 5712
Joined: Mon May 27, 2013 8:31 am

Re: Longest games

Post by Henk » Sun May 05, 2019 1:55 pm

I remember Karpov telling in a video that 1. Nf3 usually end in a draw.

Post Reply