I couldn't resist writing a little more about this knife, HappyHal on the other forum made him as part of my Crazy Train Knife Project. Before HH started he asked if I had any other hobbies besides whittling, said he would try to use the info when carving a knife for me- result is the chess themed knife here, HH calls him King Egghead and he came with a little story:
He's the meanest king on the chessboard. If he doesn't like how things are going he will blow his stack and carve the offending piece into a pawn.
That's my kind of king. The reference to blowing his stack refers to the fact that Egghead's head is a blade keeper.