4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. OLL parity specifically occurs because two adjacent edge pieces are flipped, but generally you can't recognize it until you are at the OLL stage of solving.
📄 Print Friendly PDF Download:
https://www.speedcube.com.au/products...
👀 Companion Instructions:
https://www.speedcube.com.au/blogs/sp...
0:00 Intro
0:15 Recognising OLL Parity
0:38 OLL Parity Algorithm 1
1:20 OLL Parity Algorithm 2
📦 Where to buy Cubes:
https://www.speedcube.com.au
🎓 TUTORIALS:
🔸How to solve a 2x2 Rubik's Cube - / watch
🔸How to solve a 3x3 Rubik’s cube - • How To Solve The Rubik's Cube in 5 easy steps
🔸PLL Algorithms: • PLL Algorithms for 3x3 Rubik's Cube
📄 Print Friendly PDFs
🔸2x2: https://www.speedcube.com.au/products...
🔸3x3: https://www.speedcube.com.au/products...
🔸4x4 Parity: https://www.speedcube.com.au/products...
CFOP Algorithm Sheets: https://www.speedcube.com.au/products...