Hashi (Bridges)

Hashiisatypicalpuzzlegame,whereyoutrytoconnectislandswithbridges.ThegoalofHashiistoconnecteveryislandwithasmuchbridgesasthenumberontheislanddisplays.Twoconnectingislandscaneitherhaveoneortwobridges.YouwinHashi,wheneveryislandisconnectedeitherdirectlyorindirectlywitheveryotherisland.Thatmeansthattheymustbuildaclosednetwork.Butbeaware,thatbridgesmustnotbecrossingeachother.Eachgameisgeneratedandthereforeunique,sothereareunlimitedgamestoplaywithoutanypayment.Features:-UnlimitedPuzzlesforfree-Undo/Redo-Timer/Personalhighscore-Gameisautomaticallysaved-Differentdifficulties-Nightmode-Detailedhelp-Leaderboards-AchievementsThegameplayofHashiisverysimple:Youpressontheislandyouwanttoconnect,shifttotheislandyouwanttoconnectittoandreleaseyourfingeronthatisland.Withthat,abridgeisbuilt.Repeattobuildtwobridges,andagaintoremovethebridges.TherearedifferentlevelsinHashithathavedifferentsizeofthefield.Butdon'tbeafraidtotryamoredifficultlevel,aseverylevelwillbesaved,soyoucancontinueonthatlater.Methods:Usuallyitisusefultostartwiththehighestnumberedislands.Buildingbridgeseliminatesthepossibilityforotherbridges,astheymaynotcross.Withthatitforcestoplaceanotherbridge,astherearenomorepossibilities.Anislandwith3inacorner,anislandwith5alongasideandislandof7inthemiddlerequiresatleastonebridgetoeverydirection.Acornerislandwith4,anislandalongasidewith6andanislandwith8,requirestwobridgestoeverydirection.Thesameisofcoursethesamefor3and4thatonlyhavetwodirectionsleftandfor5and6thathaveonlythreedirectionsleft.Itisadvisabletowatchoutforislandsthathavenomoreoptionsleft.Forinstance,whenyouhaveanislandwith1andapossibilitytoeverydirection,youconnectit,assoonasthreeofthesepossibilitieshavegone,duetoblockingbridges.Alwayskeepinmind,thatallislandmustbeconnectedtoonesinglenetwork.Thereforesomeconnectionsarenotpossible,suchasconnectingtwo1together.History:ThefirstversionofHashi(thefullnameisHashiwokakero)waspublishedinSeptember1990inthemagazinePuzzleCommunicationNikoli.AlthoughanearlierversionofthegamehasalreadybeenpublishedinDecember1989.