Brian Hinkle's Prize Problem hasn't been solved as of the date of publication, so he's upping the ante. As of 00:01 AM HST on June 1, the prize offer will increase to $50. Brian asks, "Are you a gambler?" In other words, do you submit your solution now, while the prize is still $25, or take the chance and wait for the $50 prize, knowing that someone else might solve it in the meantime? It's all up to you!

We won't be publishing the solution on June 4, as originally planned, to allow further time for someone to submit the winning solution. Good luck to one and all!

See terms and conditions on the problem page linked above. Void where prohibited by law.