Computer Science – Computational Complexity
Scientific paper
2010-08-17
Computer Science
Computational Complexity
9 pages, 7 figures
Scientific paper
It is well known that Sokoban is PSPACE-complete (Culberson 1998) and several
of its variants are NP-hard (Demaine et al. 2003). In this paper we prove the
NP-hardness of some variants of Sokoban where the warehouse keeper can only
pull boxes.
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