Dankjewel voor het toevoegen van Bavaria in Revelation =) I'm sure it will make users happy. I also mentioned in a previous post that I changed the chess drivers MAME source code license to from GPL to BSD3 (Bavaria emulation was part of it). Assuming you got the info from MAME, I'm glad it was of use to you and as I said, the license change is exactly the reason for this, so modern chesscomputer companies can refer to it without requiring to release the source code.

The protocol is indeed very simple, when I wrote the code, I was actually a little surprised at how straightforward it is. Much better than Tasc's piece-recognition board version.