Multidimensional Crosswords?
Aaron asks: "I write the crossword for the student newspaper at my university (McGill, in Montreal). For the last issue of the year I like to go all-out and do something special. Usually I just make a super-big one, but I had a brainstorm - a crossword is essentially a 2-dimensional matrix where set intersections are judged as valid if they test positive as real words out of a dictionary. Of course, the decision to limit the matrix to 2 dimensions is just pragmatic so if you wanted you could make crosswords of 3 or more dimensions (though a 4-dimension crossword might have to be done in pencil first). Any ideas on how to actually do this?" This would be interesting on a computer, but would be fairly hard to do in print. If you were of a mind to make a 3D crossword puzzle on paper, how would you do it?
Forget 3d, it would be too difficult to make and most people wouldn't be able to wrap their tiny little brains around how it works. Make a hexagon-based crossword instead. This gives you 3 directions (vertical, down/left, and up/left), gives you the added complication of 3 possible clues per intersection, and will easily fit on a single page of paper. You'll have to come up with a hexagonal grid, but that's not too difficult. There should be plenty of vector-based hex grids on the web.