When my dad and grandpa were teaching me how to play chess, they told me that the knight moves in a "G" pattern. I could not for the life of me figure out how a G maps to what they showed me, so I figured out that it goes one diagonal, and then eitger one up if the diagonal was up, one down if it was down and the same reasoning for left and right. That's still how I visualize it.

Years later I realized that they meant the cyrillic G, which looks like this: Γ...