My name's Adam, I live in Poland, I study computer science and I'm here to show you my idea of a very difficult brain game. It looks like this is the place where it could get appreciated.
The idea comes from automata theory and the game is extremely difficult for a human, although can be easily solved by brute-force approach so it's something like Sudoku in this context.
I will post one instance of the problem to solve in appropriate section on this forum. We'll see if you like it. Actually I've written this game already but I don't want to be banned instantly for spamming you and leave a bad taste, so I won't give you any link and just wait to see if you want it yourself
From other stuff, I love algorithms and programming contests like Topcoder or Codeforces. Naturally, I'm interested in math too.
I always liked math riddles, this is my favorite: http://en.wikipedia....ty_Hall_problem