For old games, see the list at http://www.jepflast.com/chesstree/ Akobian vs. The World: username=thesecret password=ofnimzo. The World vs. Natalia Pogonina: username=theworld, password=shifty. For the Arno Nickel game and the Mikhail Umansky game, the Username is "chessgames" and the Password is "blackandwhite". For the Battle of the Brains game, the Username is "teamwhite" and the Password is "pawntoi9".

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What is the Chess Analysis Tree?
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The Tree is a website that stores lines of analysis and comments about that analysis. It is not integrated or affiliated with chessgames.com, but it has been used by chessgames.com members for Chessgames Challenges, the purpose of its creation. Some people use the Tree, and some ignore it. There is no obligation, of course.

Like a Sticky, anyone can edit the Tree. This is done by adding candidate moves, assigning ratings to those moves, and adding comments to a node, all of which are performed on the node page (which is the one that shows a board position). But don't miss the link ("View Tree") at the top of the node page that takes you to a view of the Tree from the current game position. On the View Tree page, candidate moves are sorted by rating, so the best line is (in theory) across the top; however, it is common to have multiple best lines.

The Tree is a tool as well as an ongoing experiment attempting to harness the power of organization to maximize a chess-playing team's potential. Improvements continue to be made, occasionally, and suggestions are always welcome. Please use this forum for Tree discussion.