Title
An investigation of the game of Defend the Island.
Abstract
Motivated by the problem of "Defend the Roman Empire", we propose a variant of graph pebbling, named (d, t)-pebbling, and use this idea to devise a two-player game of imperfect information, named "Defend the Island". On an island, the target castle attacked by the opponent is securable if t Field Armies (FAs) can reach the target castle from neighboring castles within a distance of d. The aim is to obtain more points than the opponent before an insecure castle on the island is attacked. There is a minimum number of FAs initially deployed on the island so that each castle is securable. In graph pebbling, this number is called the optimal (d, t)-pebbling number of a graph G, denoted by pi*((d,t))(G). When the number of FAs is less than pi*((d,t))(G) there exists at least one insecure castle. This property is the core idea to devise the new game. In addition, when the castles forms a cycle, that is, the graph is a cycle, we give a lower bound of pi*((d,t))(G) for d = 1, 2 and determine the exact value of pi*((d,t))(G) for the ordered pairs (d, t) = (2, 2), (1, 4m) and (2, 10m), where m is any positive integer.
Year
DOI
Venue
2018
10.3233/ICG-180052
ICGA JOURNAL
Keywords
Field
DocType
Game design,(d,t)-pebbling
Computer science,Artificial intelligence
Journal
Volume
Issue
ISSN
40
4
1389-6911
Citations 
PageRank 
References 
0
0.34
1
Authors
2
Name
Order
Citations
PageRank
Jr-Chang Chen14215.19
Chin-Lin Shiue2103.93