How do crossword puzzles come about? Here’s how —
Puzzles/Tricks
Puzzles/Tricks
Fifteen Thousand Dominoes Later
by JOHN ADAMS • • Comments
City, Culture, Politics, Puzzles/Tricks
The Colors of a Rubik’s Cube
by JOHN ADAMS • • Comments
Imagine that one sees a Rubik’s Cube for the first time, on a table nearby. Three sides of that six-sided object are visible, displaying small squares of red, blue, and white. Consider this initial puzzle: What colors are the other three sides? How would one determine, with confidence, the colors on those sides obscured from…