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From: chesakov@tucson.princeton.edu (George Chesakov)
Subject: Re: A proof of a solvability algorithm for a 15-puzzle, etc...
Message-ID: <1995Apr10.224929.12804@Princeton.EDU>
To: Igor Pechtchanski <ipechtch@its.brooklyn.cuny.edu>
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Date: Mon, 10 Apr 1995 22:49:29 GMT
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