Question about the crosswords

Hi, I have some questions about the component :

1) what the button "solve crossword" mean please ? When I click it, it always displays "minimum 75% of the questions...."
2) if the users always click on "solve question" and fill in all the grid, does he earn the points as someone who really plays with his head ?
3) is it possible to have a link on the crossword title in the list of started grids under "my stuff" item?

regards
Myann