LinkBack Thread Tools Display Modes
  #1   Report Post  
Old June 14th 04, 12:26 PM
Guy Macon
Posts: n/a
Default Longest Possible Chess Game?

Start with 32 chesspieces.

Make 49 moves, avoiding repeating positions.

On move 50, move a pawn or make a capture.

Repeat N times until you make the last capture that leaves 2 kings.

There are 30 50-move sequences ending with a capture available.

There are 96 50-move sequences ending with a pawn move available.

8 of these sequences end with a pawn move that is also a capture.

Assuming FIDE rules, there are a total of 50*(30+96-8)=5900 50-move
sequences ending with a capture or a pawn move available. Use them
all up and the chess game is over. This sets the upper limit at
5900 moves, which at 2 minutes per move would take 11,800 minutes
which is 197 hours or 8.2 days of playing 24 hours a day.

I believe that this limit can be reached without drawing by any
other method such as repeating a position.

Guy Macon, Electronics Engineer & Project Manager for hire.
Remember Doc Brown from the _Back to the Future_ movies? Do you
have an "impossible" engineering project that only someone like
Doc Brown can solve? My resume is at

Thread Tools
Display Modes

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post FAQ [2/4] [email protected] (Chess General) 0 April 3rd 04 12:36 PM FAQ [2/4] [email protected] (Chess General) 0 March 19th 04 09:36 AM FAQ [2/4] [email protected] (Chess General) 0 March 3rd 04 10:06 AM
Thoughts on 'Bobby Fischer Teaches Chess'? Vic Martinez (Chess General) 33 October 29th 03 12:49 PM

All times are GMT +1. The time now is 07:13 AM.

Powered by vBulletin® Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004-2018 ChessBanter.
The comments are property of their posters.

About Us

"It's about Chess"


Copyright © 2017