The first question is about the God’s Number.docx
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1、ThefirstquestionisabouttheGodSNumber.SotwewannaknowwhatistheGod,sNumber?IbelievethatmanyofsmayhaveplayedRubiksCube,andtheGod,SNumberisaboutthatcube.So,lookatthispictureontheleft.EvenifyouhaventplayedtheRubiksCube,youcaneasilyfindthatithasonlybeenrotatedtwice,soyouonlyneedtorotateittwiceinreverseorde
2、randthenyoucanrecoverit.Lookattherightone.Itwasrandomlyrotatedbysixsteps.Itseemsabitdifficulttoseehowtorecoveritataglance.However,ifweknowexactlyhowitwasrotated,wecanstillrotateitinreverseorder.Justneedsixstepswecanrecoverthiscomplicatedcube.ButisthereverseorderalwaysbeingthebestwaytorecovertheRbik,
3、scube?1.etuslookatthenextquestion.WhatifthestateofaRubiksCubeisobtainedbyrotatingitonethousandsteps?Howtorecoverit?Dowealsoneedtorotateinreverseorderonethousandsteps?Ofcausenot.PeoplewhohaveplayedRubiksCubemayknowthattherearesomespecificwaystosolverandomlyrotatingRubiksCube,withonlyalimitednumberofs
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- The first question is about Gods Number God
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