I have been playing this game for years and found this cheat.
you click on the prarie dog and wait to see who goes first. If he dose not move bingo
your time to start. Pick up your dog and set it down in the top right hand corner. And it will place and X. Then it will be the prarie dog's turn.then you place it in the bottom left hand corner.then the prarie dog will go then you place your dog in the bottom right. now when the prarie dog will go, you have two places where you can place your dog and win. The prarie dog will place his in one and you will place yours in the other and you win!