Oh, and I have three good news for you:

1) I've abandoned my other contest (The work to participation/fun/interaction ratio was horrible) which will leave me with more time and energy to put into this little thing.

2) After 5 rounds, I will have enough data to calculate player statistics. They won't make your calculations easier but I hope they add another level of outsmarting each other.

3) I accept suggestions for the theme of Round 5. What kind of battle do you want to see?