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GO Is Polynomial-Space Hard
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Source Journal of the ACM (JACM) archive
Volume 27 ,  Issue 2  (April 1980) table of contents
Pages: 393 - 401  
Year of Publication: 1980
ISSN:0004-5411
Authors
David Lichtenstein  Computer Science Division, Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA
Michael Sipser  IBM Research Laboratory, 5600 Cottle Road, San Jose, CA and University of California, Berkeley, California
Publisher
ACM  New York, NY, USA
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Downloads (6 Weeks): 20,   Downloads (12 Months): 101,   Citation Count: 16
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ABSTRACT

It is shown that, given an arbitrary GO position on an n × n board, the problem of determining the winner is Pspace hard. New techniques are exploited to overcome the difficulties arising from the planar nature of board games. In particular, it is proved that GO is Pspace hard by reducing a Pspace-complete set, TQBF, to a game called generalized geography, then to a planar version of that game, and finally to GO.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

 
1
BERLEKAMP, E R, CONWAY, J, AND GUY, R Wmmng Ways Academic Press, New York. To appear
 
2
BLOCK, H C Axioms for GO SIGART Newsletter (ACM), 51 (Aprd 1975), p 13
 
3
CHANDRA, A K, AND STOCKMEYER, L J Alternation 17th Annual IEEE Symp Found Comptr So, Houston, Texas, 1973, pp 98-108
4
 
5
FRAENKEL, A S, GAREY, M R, JOHNSON, D.S, SCHAEFER, T J, AND YESHA, Y. The complexity of checkers on an n x n board 19th Annual IEEE Symp Found Comptr Scl, Ann Arbor, MJch, 1978, pp 55-64
 
6
KARP, P M Reduoblhty among combinatorial problems In Complexny of Computer Computanons, R E Miller and J W Thatcher, Eds, Plenum Press, New York, 1972
 
7
LICHTENSTEIN, D Planar formulae and their uses. To appear m SlAM J Comptg
 
8
LICHTENSTEIN, D, AND SIPSER, M GO is Pspace Hard. Memo No UCB/ERL M78/16, Electronics Res Lab., U of Cahfornla, Berkeley Cahf 1978.
9
 
10
SCHAEFER, T J On the complexity of some two-person perfect-mformauon games. Z Comptr Syst Scz 16, 2 (April 1978), 185-225

CITED BY  16

Collaborative Colleagues:
David Lichtenstein: colleagues
Michael Sipser: colleagues