New Results in Sona Drawing: Hardness and TSP Separation. - Man-Kwun Chiu; Erik D. Demaine; Yevhenii Diomidov; David Eppstein; Robert A. Hearn; Adam Hesterberg; Matias Korman; Irene Parada; Mikhail Rudoy (CCCG, 2020)

PSPACE-completeness of Pulling Blocks to Reach a Goal. - Joshua Ani; Sualeh Asif; Erik D. Demaine; Yevhenii Diomidov; Dylan H. Hendrickson; Jayson Lynch; Sarah Scheffler; Adam Suhl (J. Inf. Process., 2020)

Any Regular Polyhedron Can Transform to Another by O(1) Refoldings. - Erik D. Demaine; Martin L. Demaine; Yevhenii Diomidov; Tonan Kamata; Ryuhei Uehara; Hanyu Alice Zhang (CCCG, 2021)

Walking Through Doors Is Hard, Even Without Staircases: Proving PSPACE-Hardness via Planar Assemblies of Door Gadgets. - Joshua Ani; Jeffrey Bosboom; Erik D. Demaine; Yevhenii Diomidov; Dylan H. Hendrickson; Jayson Lynch (FUN, 2021)

Strings-and-Coins and Nimstring are PSPACE-complete. - Erik D. Demaine; Yevhenii Diomidov (CoRR, 2021)

Pushing Blocks via Checkable Gadgets: PSPACE-Completeness of Push-1F and Block/Box Dude. - Joshua Ani; Lily Chung; Erik D. Demaine; Yevhenii Diomidov; Dylan H. Hendrickson; Jayson Lynch (FUN, 2022)

Complexity of Motion Planning of Arbitrarily Many Robots: Gadgets, Petri Nets, and Counter Machines. - Joshua Ani; Michael J. Coulombe; Erik D. Demaine; Yevhenii Diomidov; Timothy Gomez; Dylan H. Hendrickson; Jayson Lynch (SAND, 2023)

This Game Is Not Going To Analyze Itself. - Aviv Adler; Joshua Ani; Lily Chung; Michael J. Coulombe; Erik D. Demaine; Yevhenii Diomidov; Dylan H. Hendrickson; Jayson Lynch (CoRR, 2023)

Complexity of Reconfiguration in Surface Chemical Reaction Networks. - Robert M. Alaniz; Josh Brunner; Michael J. Coulombe; Erik D. Demaine; Yevhenii Diomidov; Ryan Knobel; Timothy Gomez; Elise Grizzell; Jayson Lynch; Andrew Rodriguez; Robert T. Schweller; Tim Wylie (CoRR, 2023)

Any platonic solid can transform to another by O(1) refoldings. - Erik D. Demaine; Martin L. Demaine; Yevhenii Diomidov; Tonan Kamata; Ryuhei Uehara; Hanyu Alice Zhang (Comput. Geom., 2023)

Traversability, Reconfiguration, and Reachability in the Gadget Framework. - Joshua Ani; Erik D. Demaine; Yevhenii Diomidov; Dylan H. Hendrickson; Jayson Lynch (Algorithmica, 2023)