منابع مشابه
Deciding the On-line Chromatic Number of a Graph with Pre-coloring Is PSPACE-Complete
The problem of determining if the on-line chromatic number of a graph is less than or equal to k, given a pre-coloring, is shown to be PSPACE-complete.
متن کاملLemmings Is PSPACE-Complete
Lemmings is a computer puzzle game developed by DMA Design and published by Psygnosis in 1991, in which the player has to guide a tribe of lemming creatures to safety through a hazardous landscape, by assigning them specific skills that modify their behavior in different ways. In this paper we study the optimization problem of saving the highest number of lemmings in a given landscape with a gi...
متن کاملScrabble Is PSPACE-Complete
In this paper we study the computational complexity of the game of Scrabble. We prove the PSPACEcompleteness of a derandomized model of the game, answering an open question of Erik Demaine and Robert Hearn.
متن کاملAmazons is PSPACE-complete
Amazons is a board game which combines elements of Chess and Go. It has become popular in recent years, and has served as a useful platform for both game-theoretic study and AI games research. Buro [2] showed that simple Amazons endgames are NP-equivalent, leaving the complexity of the general case as an open problem. We settle this problem, by showing that deciding the outcome of an n×n Amazon...
متن کاملPushPush-k is PSPACE-Complete
We prove that a pushing-block puzzle called PUSHPUSH-k is PSPACE-complete for any fixed k ≥ 1. In this puzzle, a robot moves on a finite grid. Each grid position is either empty or occupied by a single obstacle block. While moving, the robot may push obstacle blocks in direction of its movement, subject to certain constraints. In particular, once an obstacle block starts moving, it continues to...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Theory of Computing Systems
سال: 2017
ISSN: 1432-4350,1433-0490
DOI: 10.1007/s00224-017-9797-2