Constructing the Trees

•  To construct the CA Tree , call the Base | Operations | Build tree command in the main menu. If the base is small, in the Confirm window the program will ask you Do you really want to rebuild tree? Click on Yes , and the CA Tree will be rebuilt. If the base is large, the Tree builder buffer settings window will appear. Adjust the options and click OK .

To construct the Direct Tree , call Base | Operations | Build Direct Tree , and the Direct Tree builder settings window will appear. Adjust the options and click OK . Please note that constructing direct trees demands a lot of computer resources. However, there is no need to construct the Direct Tree for the HugeBase because it is already available on hard disk if you have installed it or on the CD if you haven't.
In Chess Assistant 9 you can use the trees built by CA 3.0 or CA 4.0, but not vice versa, because the direct tree format was changed in CA 5.0.

•  To construct the Professional Tree , call Base | Operations | Build tree and mark the corresponding check box with a tick.