The problem of the VeRoLog solver challenge is based on a routing challenge faced by a large international herd improvement company. The task at hand is to regularly measure the quality of milk samples at a number of farm locations, the customers. For this, special measuring tools are needed, and those have to be delivered to the customers at their request. After the measurement, the tools have to be picked up again. The planning of these deliveries and pickups will be the challenge for the competition.