See the bottom of this page for a description of the icons on the page.

Stage one of the project completed on August 9, 2002. 63,261,631 jobs were completed by 265 Peernode operators for this stage.

Stage two of the project began on March 1, 2003.

"On January 30th 2004, ChessBrain became the first distributed network to play a game against a single human opponent and earned an official Guinness World Record for 'the largest networked chess computer' in history!" 2,070 machines from over 50 countries competed against one chess Grand Master. The game ended in a draw. As of September 1, 2004, this record is an official 2005 Guiness World Record for "The World's Largest Networked Chess Computer."

The project software is available as a GUI client for Windows and as a command-line client for Windows, Linux, Mac OSX and FreeBSD. Version 3.0126.02 of the Windows graphical client is available as of January 26, 2004. Version 3.0129.01 of the Linux command-line client is available as of January 29, 2004. Version 3.0124.01 of the Mac OSX command-line client is available as of January 24, 2004. The Linux client can be run on FreeBSD (if you have Linux binary compatibility loaded under FreeBSD).

Note that this project doesn't have a website. The project is discussed in the AlZimmermannsProgrammingContests Yahoo! Group.

The project found a +4 solution to the 41 pancakes stack on July 1, 2004. It found a +5 solution to the 42 pancakes stack on July 18, 2004. It finished all of the stacks it was assigned as of August 26, 2004, and the project is complete unless it is assigned more stacks.

To participate in the project, download and run the client application. Version 1.2 of the client is available as of July 19, 2004.

The current status of the project as of July 19, 2004:

(46,TF) 1 7 5 3 6 4 2 8 12 15 10 13 16 11 14 9 17 20 18 22 24 21 19 
23 25 29 32 27 30 33 28 31 26 34 37 35 39 41 38 36 40

Not yet explored

(46,TG) 1 7 5 3 6 4 2 8 11 9 14 12 10 15 13 16 20 23 18 21 24 19 22 
17 25 29 32 27 30 33 28 31 26 34 37 35 40 38 36 41 39

Not yet explored

(45,TE) 1 7 5 3 6 4 2 8 11 9 14 12 10 15 13 16 19 17 22 20 18 23 21 
24 28 31 26 29 32 27 30 25 33 36 34 39 37 35 40 38

Solved in 44 flips

(46,TC) 1 7 5 3 6 4 2 8 11 9 13 15 12 10 14 16 20 23 18 21 24 19 22 
17 25 29 32 27 30 33 28 31 26 34 37 35 39 41 38 36 40

Solved in 45 flips

(47,TD) 1 7 5 3 6 4 2 8 12 15 10 13 16 11 14 9 17 21 24 19 22 25 20 
23 18 26 30 33 28 31 34 29 32 27 35 37 40 36 39 42 38 41

This should be a +5

(48,TA) 1 7 5 3 6 4 2 8 12 15 10 13 16 11 14 9 17 21 24 19 22 25 20 
23 18 26 30 33 28 31 34 29 32 27 35 39 42 37 40 43 38 41 36

Solved in 47 flips (2 solutions were found)

(49,TB) 6 3 8 5 2 7 4 1 9 13 16 11 14 17 12 15 10 18 22 25 20 23 26 
21 24 19 27 31 34 29 32 35 30 33 28 36 40 43 38 41 44 39 42 37

This one is currently in progress.