Dedicated to Ruby Smith

Bumfoozle was released to Apple on what would have been her ninety-third birthday.  Years ago, my mom, Ruby Smith, found over 100 solutions to this puzzle at level ten.  I thought of several names: “Ruby’s revenge” did not work because she was not a vengeful person. So I came up with “Bumfoozle” because every time I tried to solve it I got bumfoozled.  I would have loved for her to see the app on my iPad, but she went to be with her savior a few months before she would have turned 91.