There are 9 interesting 5x5 grids.
- Assuming minimum word length of 3.
- And that words must be half-checked, rounded up.
- And where 'interesting' means each row must have at least 2 white squares.

⬛⬛⬜⬜⬜
⬜⬛⬜⬛⬜
⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬜
⬜⬜⬜⬛⬛

⬛⬜⬜⬜⬜
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⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬜
⬜⬜⬜⬜⬛

⬜⬜⬜⬛⬛
⬜⬛⬜⬛⬜
⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬜
⬛⬛⬜⬜⬜

⬜⬜⬜⬜⬛
⬜⬛⬜⬛⬜
⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬜
⬛⬜⬜⬜⬜

⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬜
⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬜
⬜⬜⬜⬜⬜

⬜⬜⬜⬛⬛
⬜⬛⬜⬛⬛
⬜⬜⬜⬜⬜
⬛⬛⬜⬛⬜
⬛⬛⬜⬜⬜

⬜⬜⬜⬜⬛
⬜⬛⬜⬛⬛
⬜⬜⬜⬜⬜
⬛⬛⬜⬛⬜
⬛⬜⬜⬜⬜

⬛⬛⬜⬜⬜
⬛⬛⬜⬛⬜
⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬛
⬜⬜⬜⬛⬛

⬛⬜⬜⬜⬜
⬛⬛⬜⬛⬜
⬜⬜⬜⬜⬜
⬜⬛⬜⬛⬛
⬜⬜⬜⬜⬛