The link goes to a post explaining all the moves, with pictures of possible paths. Yes, the bishop can choose which direct path to take through the center.
Oooh, I wouldn't get rid of it! Have it inspected for safety, then use it to store vegetables for winter, or wine, or camp out in it to keep cool in the summer. You couldn't ask for a better tornado shelter, either.
Nice graphics, but the computer is way overthinking. It has to consider all possible moves, whereas a human can go faster by not considering "stupid" moves. If you are playing someone who makes stupid moves, then you don't have to worry about thinking too much.
When you find one, click on him, and the game will keep tally at the bottom. I know what you mean- the first time through, I wasted a lot of time figuring out how to play.
Wikipedia says they normally eat small rodents, and stay away from human communities. But I bet they'd break bad on anyone who made them feel threatened!
http://www.neatorama.com/2006/06/23/where-the-heck-is-matt/