Title
Generalized Shogi, Chess, And Xiangqi Are Constant-Time Testable
Abstract
We present constant-time testing algorithms for generalized shogi (Japanese chess), chess, and xiangqi (Chinese chess). These problems are known or believed to be EXPTIME-complete. A testing algorithm (or a tester) for a property accepts an input if it has the property, and rejects it with high probability if it is far from having the property (e.g., at least 2/3) by reading only a constant part of the input. A property is said to be testable if a tester exists. Given any position on a [root n] x [root n] board with O(n) pieces, the generalized shogi, chess, and xiangqi problem are problems determining the property that "the player who moves first has a winning strategy." We propose that this property is testable for shogi, chess, and xiangqi. The shogi tester and xiangqi tester have a one-sided-error, but surprisingly, the chess tester has no-error. Over the last decade, many problems have been revealed to be testable, but most of such problems belong to NP. This is the first result on the constant-time testability of EXPTIME-complete problems.
Year
DOI
Venue
2019
10.1587/transfun.E102.A.1126
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Keywords
Field
DocType
property testing, generalized shogi, generalized chess, generalized xiangqi, EXPTIME-complete, one-sided-error
Theoretical computer science,Mathematics,Calculus
Journal
Volume
Issue
ISSN
E102A
9
0916-8508
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Hiro Ito129039.95
Atsuki Nagao223.78
Teagun Park300.34