If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game there will be a grid of pegs and you need to flip the pegs so that the white side faces up. When you flip a peg, the adjacent pegs will also be flipped, so you need to plan which pegs to flip. There are a total of 7 levels and the game will be harder and harder. The faster and the fewer moves you need to finish a level, the higher your score.
This game is played by mouse only.