Heuristic search and other forms of combinatorial search optimization are a very active areas of research in artificial intelligence, robotics, planning and other areas of computer science. The International Symposium on Combinatorial Search (SoCS) is meant to bring researchers in such areas together to exchange their ideas and cross-fertilize the field. SoCS is targeting researchers and submissions in all fields that use combinatorial search, including artificial intelligence, planning, robotics, constraint programming, meta-reasoning, operations research, navigation and bioinformatics. We especially invite submissions presenting real-world applications of heuristic search.