
sudoku : solvers
	.) susolvex
	.) susolve

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ToDo:
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8may22:
.) revised to handle puzzles with multiple,
	even infinitely many solutions. I now stop
	when reaching first solution: susolve.

13jan22:
.) 3 parms: filename + row + col implies
	do not show entire solution,
	show only M(row,col)

11jan22:
.) added susolve.adb for non-X.
.) Both now require file input.
	See s1.txt, x1.txt.

10jan22:
.) created Xsolver susolvex.adb...
	and got it working!

