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On decidability and complexity of low-dimensional robot games

Abstract:
A robot game, also known as a Z-VAS game, is a two-player vector addition game played on the integer lattice Zn, where one of the players, Adam, aims to avoid the origin while the other player, Eve, aims to reach the origin. The problem is to decide whether or not Eve has a winning strategy. In this paper we prove undecidability of the two-dimensional robot game closing the gap between undecidable and decidable cases. We also prove that deciding the winner in a robot game with states in dimension one is EXPSPACE-complete and study a subclass of robot games where deciding the winner is in EXPTIME.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.jcss.2019.08.003

Authors

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Institution:
University of Oxford
Department:
Computer Science
Department:
Unknown
Role:
Author
ORCID:
0000-0002-2210-1481
More by this author
Role:
Author
ORCID:
0000-0003-3780-1074


Publisher:
Elsevier
Journal:
Journal of Computer and System Sciences More from this journal
Volume:
107
Issue:
February 2020
Pages:
124-141
Publication date:
2019-08-20
Acceptance date:
2019-08-09
DOI:
ISSN:
0022-0000


Language:
English
Keywords:
Pubs id:
pubs:1047968
UUID:
uuid:a63d3805-648d-41da-b21b-88d4dbd304d3
Local pid:
pubs:1047968
Source identifiers:
1047968
Deposit date:
2019-08-28
ARK identifier:

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