@farbrorsniff wrote:Any idea of the strenght of this engine?

Two engines I've extensively tested my engine against are GNU Chess 5.07 and Fruit 2.01. Octochess is able to win against GNU Chess most of the time but so far has only won against Fruit once with the occasional draw. There's plenty of room for improvement though, in particular I've spent almost no time on tuning the evaluation. I've got a framework though to tweak the evaluation terms using a primitive genetic algorithm using the evaluation scores printed by other engines as fitness factor. Octochess' playing style seems strange, near total lack of regard for king safety, definitely one of the things I'd like to look into next.

Jim Ablett wrote:I don't think this will run on any Os earlier than Vista. I saw some Vista/Win7 api-specific calls in the source.