I have three chess puzzles for you this week, but you don’t need to know the rules of chess for two of them. These two are variants of the famous eight queens puzzle, which asks solvers to position eight queens on an eight-by-eight board such that no two queens attack each other. The eight queens puzzle requires a…
‘Tis the season for New Year’s resolutions. As we all sign up for gym memberships or invest in a Peloton that will just gather dust by March, I resolve to work out your brain this year. January 1, 2024 is a Monday. So what day was January 1 last year? Because of the regularities in how we slice and organize time, you…
