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= ZDD Fun = Ben Lynn <firstname.lastname@example.org> These programs use ZDDs (zero-suppressed binary decision diagrams) to solve logic puzzles. See Knuth, "The Art of Computer Programming", Volume 4, Fascicle 1, which I partly summarized: http://crypto.stanford.edu/pbc/notes/zdd/ Build with make. |=========================================== | Puzzle | Sample Input | Source |=========================================== | Dominosa | dominosa.txt | dom.c | Fillomino | fillomino.txt | fill.c | Lights Out | light.txt | light.c | Slither Link | slither.txt | loop.c | Nonogram | nonogram.txt | nono.c |=========================================== All programs read a puzzle from standard input then print the solution on standard output. The file spi.txt is a Slither Link puzzle I used loop.c to construct. Try solving it by hand first. Standard Sudokus are too big to be efficiently solvable by ZDDs. I found out the hard way: see sud.c. I began a Nurikabe solver but I have since been distracted.