EntityQ1154605· pop 10· linked from 21 articlesRush HourSign in to savesliding block puzzleConnectionsUnited StatesCountryInternational Standard Book NumberEntityiOSEntitydigital object identifierEntityQ118398EntityCiteSeerXEntitymechanical puzzleEntitysliding puzzleEntitycombination puzzleEntityKlotskiEntityPSPACE-completeEntityAmerican City Business JournalsEntityScott KimEntityCategoriesCombination puzzlesMechanical puzzlesMensa Select winnersPSPACE-complete problemsPuzzle video gamesSingle-player games