This is worth reading.
Oh, and one other thing. I am sick and tired of hearing the 4D or whatever chess! That is so stupid! Some folks are good at chess because they know the RULES of what each chess piece can and cannot do. There is absolutely no way to know what a real person may or may not do!! Many times with our little scenarios, we find out the other person was not even thinking anything like what we thought in the least little bit. We just assume everyone has the same thoughts we do. I'm not the center of the universe unfortunately!