Here's the second Castle Wall I wrote last week in preparation for the upcoming WPC.
I really hope that WPC will get me motivated again to construct and solve logic puzzles. This has really been on the backburner for the last couple of years as I've started grad school... but I've already rediscovered some of my love for these things during just the last couple of weeks, as I've been practicing with the rest of the USA teams. Relatedly, if you're going to WPC (or you're already there for WSC) and want to meet up, do reach out!