Why writing yet another manual when there are already several manuals on the internet, some of which are quite well? First of all, the dutch counterpart of the manual is the first online dutch one. Secondly, I aim at making this manual as complete as possible, since most manuals contain a lot of usefull information but I havent found one that covers all aspects. And last but not least, writing a manual forces you to think about Othello and so I am learning also. I'm far from being an Othello guru though, and it follows that this manual isnt perfect (yet) either, so I really appreciate remarks, comments and tips.