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That wouldn't be possible for a collapse to result in no open spaces - there will always be space beside or above the rows or columns that just shifted.
(do skréše) Dež seš napnoté(á), jak probihá tornaj, do keryhos vlitl(a), možeš ho se svéma spološpilošama okecat rovnó v "Mloveni" o toďteho tornaja. (HelenaTanein) (okázat šecke vechetávke)