When you have finished playing, the "Back" button will take you back a page. The "Reload This Game" button will restart the same game. If you would like a different Board, the "New Game" button will give you the next game. There is also a timer at the top of the page to time yourself or other people.
The first 4 games have a cheat sheet on the left of the page so you can solve them. The rest of them have not. All of the boards can be solved, and there are no red herrings. Also there are 12 Easter Eggs hidden on game 3.

Have fun, Regards:- Wabmo.