Diagramless Crosswords to print with answers

In a diagramless crossword, the locations of most of the clue numbers and shaded squares are unspecified.
The solver must deduce not only the answers to individual crosswords clues, but how to fit together partially built-up clumps of answers into larger clumps with properly-set shaded squares.
Some of these puzzles follow the traditional symmetry rule, others have left-right mirror symmetry, and others have greater levels of symmetry or outlines suggesting other shapes.
If the symmetry of the grid is given, the solver can use it to his/her advantage.
In some of the diagramless crossword puzzles, there is no symmetry at all (Italian style)