http://math.uchicago.edu/~wald/bday_cc.pdf
(Written for a birthday party.)
Many of my friends from the National Puzzlers' League self-publish puzzles on irregular schedules. I thought it would be a good thing to have a "blog" (such as it is) that simply consolidates announcements of such puzzles. And here it is.
http://math.uchicago.edu/~wald/bday_cc.pdf
(Written for a birthday party.)
http://math.uchicago.edu/~wald/con15a.pdf
http://math.uchicago.edu/~wald/con15b.pdf
http://math.uchicago.edu/~wald/con15c.pdf
http://math.uchicago.edu/~wald/con15d.pdf
(The cryptics I brought to the 2015 National Puzzlers' League convention; these are a three-puzzle suite and a separate puzzle for a 5K race that was held there.)