Is it coming next, Fencer? :)

I'm saying this as a tease, but I'm also serious about giving a whirl if it comes about. It'd make a game simular to the Spider Line 4, but with captures and the possibilty of filling up the board. It may or may not be fun to play, I don't know. I imagine making the board size changable before play starts isn't worth the trouble it'd take to see, eh? I suppose the players themselves could agree to not use part of the board before the game starts and then they'd have to stick to it.
You must be one dedicated and smart programmer to make such major additions on such short notice. I'm rooting for your site succeed and it appears that it is. Word of mouth will bring in lots more.