Snakey Hexomino
Sophie Maclean explains Animal Tic-Tac-Toe - and why the Snakey hexomino is the only "unsolved" creature.
Sophie's previous polyominoes video: https://youtu.be/ONdgXYEBihA
More Sophie on Numberphile: https://bit.ly/Sophie_Numberphile
Sophie Maclean is based at Kings College, London: https://sophiethemathmo.wordpress.com
Tic-Tac-Toe with Xs only - https://youtu.be/ktPvjr1tiKk
Three board Tic-Tac-Toe - https://youtu.be/h09XU8t8eUM