Classic Peg Solitaire Description:

This solitaire game
requires you to
move pegs horizontally, vertically, and diagonally, removing "jumped" pegs in
three board layouts: a 15-cell triangle, a 25-cell square, and a
33-cell cross.
Three-dimensional graphics depicting grainy wood, well-designed gameplay,
and
challenging puzzles make this an enjoyable game.
Fixed It Software (download page)