Puzzled about what holiday gift to give this year? The City of Elk Grove is unveiling a new item just in time for the busy ...

In the intro, it says the page instructions are all up to interpretation, so if it says 'spill your drink' or something, you ...

As avid puzzlers know full well, the humble jigsaw puzzle is a thing of beauty in multiple ways. Not only are jigsaws an absorbing time sink, but multiple studies have demonstrated they are good for ...

Abstract: This paper introduces new types of square-piece jigsaw puzzles: those for which the orientation of each jigsaw piece is unknown. We propose a tree-based reassembly that greedily merges ...