Challenge Voile is a simulator of regatta on the Olympic course described in the included manual. The simulation takes into account various parameters such as variable and rotating winds, tidal current, mobile drift, sail adjustment, and spinnaker. After the cannon shot, from one to three human players will race against the "Challenger" sailboat, which is masterfully skippered by the computer. Three levels of difficulty are proposed, which gradually integrate the parameters: initiation, improvement, and regatta. Taking turns, each player examines the parameters and current position of sailboats on the map, rotates the controlled sailboat and its sails as well as chooses whether to use an additional parameters such as drift or spinnaker. The goal is to win in the regatta, applying the best tactics.