Arasan is a chess program for Windows that includes an opening "book" with over 500,000 moves.Arasan comes with its own graphical user interface, but it can also be used together with Winboard, a separate interface program, as well as other interfaces that follow the Winboard or UCI standard. Oneexample is Arena Chess.Arasan's own interface has on-line help, which you should see if you need more information. This rest of this file has setup and usage information for using Arasan with Windows user interfaces, such as Winboard.