The Quest Begins (The "Why") I still remember the first time I stared at a LeetCode problem that asked for the minimum number of moves a knight needs to reach a target square on a chessboard. My brain went into overdrive: “Do I try every possible path? That’s exponential! Do I brute‑force it with recursion? My laptop will melt.” I felt like Neo in The Matrix staring at a cascade of green code, except the code was just a tangled mess of loops and conditionals. That’s when I realized ...