can i play?
Ya Patrick, you can play... which color would you like? It really doesn't matter, we all seem to be equally active in this, so I don't think we need you for any specific color... so your choice.
Actually Terro, I can think of two ways in which there would be a stalemate that I'm not sure there are any ways out of...
One is if the red dot is in a corner and there are 3 people around it, one being two spaces left/right (depending on the corner), one being two spaces down/up, and one being right next to it on the diagonal (so one space left/right and one space down/up). I've considered several move combinations and I can't think of any way someone could either make a move resulting in them winning, or make a move ensuring no one else can win.
Another is if the dot is like it is now with only one exit, but two spaces (let's say down) from the edge. If two people are both next to it on the diagonal, and the tail is not at its maximum length, nothing can be done. (the two players in this situation must have started diagonal from each other though... if one's turn is right after the other, the other two players can make it so no one wins that situation)
So there needs to be rules regarding these situations... unless you can think of ways to get out of them.