Chessbase -

: Ensure the position is legal (e.g., both kings must be on the board, and pawns cannot be on the 1st or 8th ranks) before saving it to your database. Entering and Organizing Games

: It is usually easiest to click "Clear board" and start with an empty board rather than rearranging the standard starting position. Chessbase

: To insert a variation, simply make a different move on the board; a dialogue will appear asking if you want to create a "New variation" or "Overwrite" the existing line. : Ensure the position is legal (e

: Once finished, go to the File menu and choose Save or Save Game As to store it in a database. : Once finished, go to the File menu

: Use the "Side to move" radio buttons on the right to select which color goes first.