
The files in this directory contain templates for crossword
puzzles. Each is a two-dimensional array. A _ indicates
that the associated square in the crossword template is
blank, and a * indicates that it is a black square that
does not need to have a letter inserted.

The crossword puzzles templates came from the following
sources:

    05.01, ..., 05.10
    15.01, ..., 15.10
    19.01, ..., 19.10
    21.01, ..., 21.10
    23.01, ..., 23.10

	Herald Tribune Crosswords, Spring, 1999

    puzzle01, ..., puzzle19

	Ginsberg, M.L., "Dynamic Backtracking," 
	Journal of Artificial Intelligence Researc (JAIR)
	Volume 1, pages 25-46, 1993.

    puzzle20, ..., puzzle22

	Ginsberg, M.L. et al., "Search Lessons Learned
	from Crossword Puzzles," AAAI-90, pages 210-215. 

