Rubik's Cube: Why are some cases impossible to solve?

A full explanation on parity, and why it happens on the void cube and 4x4 and not 3x3! Cube ► GAN 356 XS: https://speedcubeshop.com/products/ga... SpeedCubeShop ► http://bit.ly/2nW3qWg Using the code "JPERM" supports my channel and also gives you a discount on your order. Beginner: 2x2 Tutorial ►    • Learn How to Solve a 2x2 Rubik's Cube (Beg...   3x3 Tutorial ►    • Learn How to Solve a Rubik's Cube in 10 Mi...   4x4 Tutorial ►    • Learn How to Solve a 4x4 in 10 Minutes (Fu...   5x5 Tutorial ►    • Learn How to Solve a 5x5 in 8 Minutes (Beg...   Special Tutorials: 3x3 One Handed ►    • Rubik's Cube: How To Solve One Handed (OH)   3x3 Blindfolded ►    • (v.2) How to Solve the Rubik's Cube Blindf...   Advanced Tutorials: 2x2 ►    • How to Get Fast at 2x2   3x3 ►    • Beginner + CFOP Method   4x4 ►    • How to Get Fast at 4x4   5x5+ ►    • How to Get Fast at 5x5+ (Big Cubes)   Facebook ►   / jpermcubing   F2L Algs ► http://bit.ly/bestf2l Patreon ►   / jperm   Merch ► https://teespring.com/stores/jperm Special thanks to these generous Patrons: Jake Maul, Dcs Banana, Thisis alexclarkfan, Asteroid, Leland Hoagland, Broxson Barnhill, Ivan Marinkovic, someone 1, Jeremy Johnson, QueenSquare1, Derek Worth, Inventor of Loob46, Eisen Vigilia, Dawson Wilson, Sesha Sai Patro, Gregory Martin, Michael Mendoza, Pete Ryland, Jan Strohbeck, KingIceCream, Victor Giaquinto, Piotr, Leszek Gawron, Leo Li, Ed Connell, Omri Riss chbarbi, Chris Bonnello, Edan Maor, Petrified, Xiaotian Li, Keian Inouye, Riley Lee, Michael Conard, Johnathan Starkey, Those Nerds, whichonemi, Benjamin Force, Isaac Farnsworth, Li Jiang, Hudson, Dakota, James Moore, Csaba Daday, Dmitri Shabes, Voidedifbroken, Rayan Al Hobayb, Ram Thakkar, kavish, Mirzo, Aidan Gerick, Adrin Esterabadeyan, Bernhard Kofler, Cade Watson, Adam Fenn, Paul Thorley, Amay Saxena, Weisselberger Timothee, Philippe Schwartz, Jonas Rongé, Pontus Uggla, Takeshi Yanagita, Jane Qiao, Adam Prato, Ricky Robber, The Slick Cuber, DLyu, Letin, Ruimin Yan, Nina, Benjamin Jonassen, Walter, RedKB, Christopher Robin, Sebastian Szafran, Tipa Reimer, ZHU SHENJIE, Fred Strauss, Danny Williams, Rick Lush, Chris Cobb, Adam Rosales, Martijn Schiedon, David Brown, Taco, Mike Sampson, Siege Wolfe, Rob Peters, Miranda Manning