Last year, I had the idea to construct a puzzle contest where there would be 26 puzzles, one themed around each letter of the alphabet. A few friends (WA1729, dohz, Jamie Hargrove, Feadoor) and I got as far as constructing drafts of all 26 puzzles. However, by the time we did, interest in the project had waned down. There were a few reasons for this: the idea wasn't as novel as I thought it was at first, 26 puzzles is a lot for one round, creating the IB and PB was way more work than I realized. (However, it took a very long time and some prodding from dohz to come to this conclusion, because I was too afraid to let the project die. Sorry about that.)
Here are the four puzzles I constructed for this project. Rules for each type can be found under "Help --> Rules" in each of the puzz.link pages.