When I was little, my big brother started teaching me how to play chess. I learned the moves, but my brother always stomped me when we played.
Big brother used a chess board to beat up on his poor little brother.
He left me wondering why I could never win. Why could he always make certain moves whenever he wanted, but I couldn't. The rules always seemed to work for him, but never for me.
I felt like he was always cheating.
But as I got older, I improved enough to see that my brother was simply a better chess player. After all, he was much older. He understood the game and knew how to use strategy within the rules and crush me. He know how to limit my movement on the chess board until he trapped my king -- which is the ultimate prize in chess.
I slowly learned to hold my own against him in chess. He remained the better player, but I could get him now and then.
However, when I tried to match wits against my big brother in religious discussions (back when I was a Christian), I would get that same felling I had when he was teaching me chess. I felt like the rules always worked in his favor -- hardly ever in mine.
"Not fair", I'd say to myself. "He's cheating".
Today, I know better. My brother was never cheating at all. He simply knew something that I didn't.