The rules in Peg Solitaire are pretty simple. You start with a set of pegs and one or more empty spots on a board.
Pegs can move horizontally and vertically and must jump over another peg to an empty spot on the board. As a result of the move, the peg that was jumped over will be removed, thus lowering the amount of pegs left.
You win when there is one peg left on the board, preferably in the middle if you are playing the upper row of Classics. If you want a more relaxed play style, try to end with as few pegs as possible instead.
All randomized games are guaranteed to have atleast one solution.