Of course I’m a believer in deliberate practice and repetition. I understand the draw of code katas, even if the presentation is often corny, and I completely believe that every single …

Concentric Squares (forks and skewers):

• Place black king on d5 and black rook on d4, then sequentially place white queen on every square where it forks or skewers the rook and king
• Move rook in …