Some crossword grids and word squares
Word squares
A 5x5 palindromic word square
Across, down, backwards and upwards, like the Sator square.
A 4x4x4x4 word square
Each small square is a word square. The same position in each square, read along any row or column of squares, also spells a word.
A 5x5x5x5 word square
Crossword grids whose words, not just blocks, have rotational symmetry.
British-style
American-style
Barred
Themed crossword with a Nina
