Stack%20up%20the%20cats!%20Select%20a%20challenge%20and%20then%20arrange%20all%20of%20the%20cats%20on%20the%20card%20so%20that%20they%20fit%20perfectly%20within%20the%20grid.%20The%20cats%20come%20in%20all%20shapes%20and%20sizes%2C%20so%20you’ll%20have%20to%20figure%20out%20how%20they%20precisely%20nestle%20together%20to%20solve%20each%20challenge.%20Paw%20your%20way%20through%20all%2048%20puzzles%20and%20consider%20yourself%20one%20clever%20cat!Contents48%20challenge%20cards12%20cats1%20travel%20caseRules%20of%20play