SOLID, Explained With Fighter-Jet Code
The five SOLID principles — each a one-line rule, a jet analogy, and bad-vs-good code, all themed around a PvP dogfight game.
Programming
FEN Strings: How Chess Positions Fit in One Line
FEN (Forsyth-Edwards Notation) describes any chess position as a single line of text. Here's how it works, field by field, with ASCII boards and worked examples.