Don't get me wrong, I am also taking this seriously (I assume it's the contest you're referring to that you take seriously). That is in fact the reason I took the time to write a post on this thread.
I am mainly wondering if the restrictions you put on the concept aren't too hard. As you stated you don't have a concept yet and you're doing this on a professional basis. Looking at the posts that followed your reply, even more restrictions are put on the concept than I already pointed out in my previous post.
As for the comparison with the Icehouse pieces, I must disagree. Icehouse pieces have three different sizes per stack, one colour per stack (five per set, with numberous different sets) and can be placed up and on their sides (facing different directions). Giving possibilities for i.e. configuration, distinguishing of pieces, ownership of pieces etc. A set of white hexes, all of the same colour, without possibility for printing/marking and no possibility to be placed on their sides, simply do not.
To make a long story short: as much as I loved the 1st and 2nd Nestorgames contests, I don't think it is realistic to expect good game designs within this small amount of design freedom (and putting it as a 'challenge', doesn't change this).
Hi, again.
Most of your questions are answered on post #12. Anyway...
I'm not comparing this to Icehouse. I say there can be many games for the same set, like in Icehouse.
And I really like some of the proposals posted so far. They are very good.
Néstor