Well, for what it's worth, the trick is to bring your lion close to the opposing lion. As I mentioned, trades are difficult due to some strange rules, but they protect both lions and keep them in play. Just continue to play interference with your lion, or even start your own assault in the enemy camp.
In any case, I lose against the computer at Kyoto Shogi, even on lower difficulty. I'm not a great player, especially in games with which I am less familiar. I don't think you'll need to worry about my lion going crazy because I will probably be pretty timid and won't know how to play him any more effectively than you.
P-8e