What is special about center pieces?

They stay fixed relative to each other

Rubik's Cube Corners Quiz: Twists, Orientation and Parity

This rubik's cube corners quiz turns a layer and tracks three-colored pieces. Play 10 interactive questions on Ernő Rubik's 1974 invention, 43 quintillion positions, eight corners and twelve edges, fixed centers, three orientations per corner, why twisting one corner breaks solvability, parity, God's number of 20 and last-layer algorithms.

Start Rubik's Cube Corners Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Who
Who invented the Rubik's Cube?
Year
When was it invented?
Corners
How many corner pieces does a cube have?
Edges
How many edge pieces are there?
Centers
What is special about center pieces?
Orient
How many orientations can a corner have?
Twist
What happens if you twist just one corner?
Positions
About how many positions can a cube reach?
God
What is God's number for the cube?
OLL
What does OLL stand for in speedcubing?

Explanations: answer key for all 10 questions

Q1: Who invented the Rubik's Cube?
Answer: Ernő Rubik
He taught architecture in Hungary.
Q2: When was it invented?
Answer: 1974
It became a craze in the 1980s.
Q3: How many corner pieces does a cube have?
Answer: Eight
Each shows three colors.
Q4: How many edge pieces are there?
Answer: Twelve
Each shows two colors.
Q5: What is special about center pieces?
Answer: They stay fixed relative to each other
They define face colors.
Q6: How many orientations can a corner have?
Answer: Three
It can twist in place.
Q7: What happens if you twist just one corner?
Answer: The cube becomes unsolvable
Only a third of twist states are reachable.
Q8: About how many positions can a cube reach?
Answer: 43 quintillion
An astonishing number.
Q9: What is God's number for the cube?
Answer: 20
Any position solves in 20 moves or fewer.
Q10: What does OLL stand for in speedcubing?
Answer: Orientation of the last layer
Then comes PLL.

Three Colors on Every Corner

The Rubik's Cube was invented in 1974 by Ernő Rubik, a Hungarian teacher of architecture, and became a worldwide craze in the 1980s. It has eight corner pieces, each showing three colors, and twelve edge pieces with two. The six center pieces stay fixed relative to each other and define the face colors.

Each corner can sit in three orientations. Legal turns keep the total twist of all corners balanced, so twisting a single corner by hand makes the cube unsolvable; only one third of twist states can be reached. Similar parity rules mean you cannot swap just two pieces.

The cube can reach about 43 quintillion positions, yet in 2010 researchers proved God's number is 20: any position can be solved in 20 moves or fewer. Speedcubers use methods with steps like OLL, orientation of the last layer, followed by PLL, permutation of the last layer.

What This Quiz Teaches

Puzzle fans will enjoy these questions.

Who invented the cube
How pieces are arranged
How corners twist
Why some states are impossible
What God's number is

Did You Know?

Speedcubing has world championships.
Some solve cubes blindfolded.
Stickerless cubes are popular.
Bigger cubes have more layers.
Lubricant helps cubes turn smoothly.