Phutball is PSPACE-hard
Dariusz Dereniowski
Arxiv ID: 0804.1777•Last updated: 3/5/2021
We consider the n× n game of Phutball. It is shown that, given an arbitrary position of stones on the board, it is a PSPACE-hard problem to determine whether the specified player can win the game, regardless of the opponent's choices made during the game.
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