5x3+3y2−z = 5y3−3x2+z
I remember as a kid in high school my dick used to get hard when I had problems like the above to solve.
When the Math Club went to contests, I was always the first person done with the tests and aced them. On the game part of the contests, mostly HEX played, I held my own for the team. Amazingly, I don't believe I was versed in who John Nash was at the time, but did consume everything Martin Gardner put out that I could get my hands on.