Protracer is a simple raytracer originally written in 1999 as a university course project. Please be aware that, despite the name, there is nothing especially professional about Protracer. The name is meant to be a pun on the Protracker music tracker application. It currently supports a very limited subset of the POV-Ray file format.
Peg Solitaire is a board game played with pegs: in the classic mode, the board has 33 positions and 32 tokens because the center position is without form. The objective of Peg Solitaire is to remove the pegs but only with horizontal and vertical movements. It is also known as English peg solitaire or Senku. In the reverse modes, initially there is only one piece on the board.