I liked it. Though it initially it is not obvious and in the beginning of the game (setting the first 20 ticks) I found myself setting ticks at more or less ran

I liked it. Though it initially it is not obvious and in the beginning of the game (setting the first 20 ticks) I found myself setting ticks at more or less random. Have you considered having the computer set the first couple of ticks? Or maybe have a non-quadratic board or even non-square.