No data is needed for this competition as sample scenes can be generated easily. An array with the random booleans and length equalt to the number of candidate stars, can represent the star catalog. A query then checks if all supplied indices are true and only then returns a positive result. This means that a valid star sequence has been found. The less queries are necessary until a valid sequence is found, the better.
To simplify the development we (Luís and Jörg) have developed a python library that provides all necessary functions to focus on your algorithm implementation. The code is writting in python 3 but is compatible with python 2.