Calculation is a solitaire variant known for its large skill ceiling; supposedly, the large majority of games can be won by skilled human players, whereas the games to be won by uninformed play are in a slim minority (of these two facts, I can only attest to the latter!). I imagine that, like pre...

A person was shading several unit squares in a square grid, to create a path from the bottom left corner to the top right corner. The path stepped from each square to the next either horizontally or vertically to create the path, but not diagonally. For each row and column in that grid, the perso...

The solution of this riddle is usually given with explicit reasoning for two cases: -Case where there is only 1 blue-eyed person, -Case where there are 2 blue-eyed people. That logic is clear, and I can see how it extends to the case where there are 3 blue-eyed people. When there are only 2 blue-...

{Flake Fake Blake}={FFB} - {Melissa}={Juliet}+{Hotel}={2}{Adults}+{JohnMclane}+{MclaneFamily}=:){Families}-[FFB]+{Jquery}={AdolescentAdults}+{HappyHooking}={FFB+Jquery}!!&{MclaneFamily=:)>{B4}!!{Juliet}+{Returns}>{HEADS2}~^{Hotel}+(s)&{Return}~^{India}={SafeJuliet&Fam}>{FFB}+{Returns}+{FFB}<{Mr.M...

Three Blue Moons in One year, impossible? A few years ago, on Nov 15 '17 at 6:00 Jamal Senjaya asked "Is it true that doomsday will occur in the year with a triple 3 blue moon." Many of the answers to Jamal's question pointed to the impossibility of such an occurrence. The truth, however, is tha...