I just noticed this thread for the first time. I haven't read through it, so apologies if this has come up already, but have any of you ever heard of
Quantumgame?
I found a beat-up old copy of this game, made in 1984, at a yard sale for $1, maybe 10 years ago. I bought it on a whim. Turned out to be hands down the greatest board game I'd ever played. It comes with a big book which is mostly full of an analysis of the history of board gaming, only 2 pages of which are the actual game rules.
The goal is simple: fill the 4 center cups with your color pieces. There are 3 types of pieces, each of which has a specific type of move - but the pieces can change during play. It's a perfectly balanced game with a random start each time. Since the game is so unpredictable, you can never plan far in advance - you have to play creatively at all times. And whenever you think you've got your opponent on the ropes, something can happen to completely reverse the situation. It's part checkers, part chess, and part poker. A strategy board game where psychological warfare is a common tactic.
I've taught everyone I could find how to play the game. Spent most of this week playing against my grandfather (who only beat me once). Taught my mom today. Taught all my friends in Prague and we meet often specifically to play this game. And all this time, all these years, I had believed the game to be out of print and impossible to obtain. Just yesterday, however, I discovered the above link -
you can still buy a new copy of this game from the creator, a German-born engineer, researcher, and author of books on "recreational mathematics" who currently lives in New Jersey. I immediately ordered a copy for my grandfather to play after I go back to Europe. It's not cheap ($45 including shipping to US, bit more for international), but for what it is, I swear it is absolutely worth it.
Actually, I'd really love to see a digital version of this game. It would be *great* for online play, if it wouldn't be too difficult to code...
tl;dr version:
Playing this game makes me feel like Ender. If you can afford it, I highly recommend ordering a copy. You will not regret it.