Edouard Bonnet Florian Jamain Abdallah Saffidine Draws, Zugzwangs, and PSPACE-Completeness in the Slither Connection Game. 160-176 2015 ACG https://doi.org/10.1007/978-3-319-27992-3_15 conf/acg/2015 db/conf/acg/acg2015.html#BonnetJS15