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Path: utzoo!linus!philabs!cmcl2!floyd!clyde!akgua!gatech!spaf
From: spaf@gatech.UUCP
Newsgroups: net.puzzle
Subject: Re: "Looks simple" puzzle (solution in ROT13)
Message-ID: <2480@gatech.UUCP>
Date: Sun, 27-Nov-83 14:16:18 EST
Article-I.D.: gatech.2480
Posted: Sun Nov 27 14:16:18 1983
Date-Received: Mon, 28-Nov-83 06:11:53 EST
References: <427@ihuxn.UUCP>
Organization: Georgia Tech School of ICS, Atlanta
Lines: 30

Vg pnaabg or fbyirq nppbeqvat gb gur ehyrf tvira.  Va snpg, gur chmmyr
vf onfvpnyyl n irefvba bs gur Oevqtrf bs Xbavtforet ceboyrz fbyirq ol
Rhyre.

Yrg rnpu rapybfrq nern or rdhvinyrag gb n iregrk va n tencu, naq yrg
rnpu yvar frtzrag frcnengvat gjb fhpu nernf or na rqtr va gur
pbeerfcbaqvat tencu. (Gurer vf n iregrk pbeerfcbaqvat gb gur "bhgfvqr"
bs gur svther juvpu vf pbaarpgrq gb nyy gur bgure iregvprf, cbffvoyl ol
zber guna bar rqtr.)

Gur ceboyrz cbfrq vf gurersber rdhvinyrag gb svaqvat n Rhyrevna cngu.
Fhpu n cngu rkvfgf va n pbaarpgrq, aba-qverpgrq tencu vss gur ahzore bs
iregvprf bs bqq qrterr vf 0 be 2.  Hasbeghangryl sbe hf, gur tencu
pbagnvaf 4 iregvprf bs bqq qrterr (gur "bhgfvqr" iregrk, gur iregrk
pbeerfcbaqvat gb gur zvqqyr fdhner va gur gbc ebj, naq obgu iregvprf
sebz gur obggbz ebj).

Va n zber vaghvgvir znaare, pbafvqre gung nal obk jvgu na bqq ahzore bs
fvqrf (frtzragf) zhfg unir gur cngu rvgure ortva be raq vafvqr bs vg;
bgurejvfr, lbh arrq na rira ahzore bs fvqrf, orpnhfr rnpu ragenapr gb
gur obk zhfg unir n pbeerfcbaqvat rkvg.  Fvapr n pbzcyrgryl pbaarpgrq
cngu guebhtu nyy gur fvqrf pna unir ng zbfg 2 raqcbvagf, gurer pna or
ng zbfg 2 obkrf jvgu na bqq ahzore bs rqtrf. Gurer ner 4 fhpu obkrf,
guhf gur ceboyrz vf vafbyhnoyr.

-- 
Off the Wall of Gene Spafford
School of ICS, Georgia Tech, Atlanta GA 30332
CSNet:	Spaf @ GATech		ARPA:	Spaf.GATech @ CSNet-Relay
uucp:	...!{akgua,allegra,rlgvax,sb1,unmvax,ulysses,ut-sally}!gatech!spaf