Transcript
Page 1: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

The Rubik's Cube

From the history to the play

Page 2: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Table of Contents - Outline

• History- Invention- Inventor

• Ascent To Glory• The Rubik's Cube

- 3x3x3- Other Designs

• Number of Combinations• Solving the Cube

- Methods- The Fridrich Method- Notation

• Competitions• World Records

Page 3: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

History - Invention

• Invented in 1974 by Ernő Rubik, in Hungary

• Patented in 1975

• It was originally used for understanding 3D objects

• Sold by Ideal Toy Corp.

Page 4: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

History - The Inventor: Ernő Rubik

• Born in Budapest, Hungary, July 13, 1944

• Graduated from the Technical University in Architecture, in 1967

• Architect and professor of Architecture at the Budapest College of Applied Arts

• Currently, he is working on video games

Page 5: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Ascent To Glory - Growth in Popularity

• Won the Game Of The Year award in Germany, 1980

• Popularity grew worldwide• As of 2009, it became the top-selling puzzle of

all time with 350 million cubes sold!• The World Cube Association (WCA) was

created, in 2003, to organize competitions• Several of these competition are held annually

world-wide

Page 6: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

The Rubik's Cube - 3x3x3

• Standard, original cube design, 3x3x3 dimensions

• Colors: White, yellow, red, orange, blue, green• Held together with a center 3D "cross", which

the centers are attached to • Consists of corner, edge and center pieces

Page 7: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Rubik's Cube - Other Designs

• Many other designs and dimensions, such as 5x5x5 or 7x7x7

• These cube are manufactured by other companies, such as DaYan

• Many other designs are improved versions of the 3x3x3

• Some rubik's cubes have different shapes altogether (triangles, flat tiles .etc...)

Page 8: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Number of Combinations

• 43 quintillion possible combinations!• Number comes from 8! * 37 (corner pieces) *(12! / 2) * 211 (edge pieces)• If there were the same number of cubes as

there are combinations, the cubes would cover the Earth 275 times!

Page 9: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Solving the Cube - Methods

• There are several methods to solve a cube• Optimal number of moves to solve is 20• The 20 moves are almost exclusively executed

by computers who can make calculations quickly

• The Fridrich Method is very popular• The Petrus Method and the Roux are also fairly

popular methods

Page 10: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Solving the Cube - The Fridrich Method

• Developed by Jessica Fridrich• 4 steps to completion• Step 1: Cross. Step 2: First Two Layers. Step 3: Orientation of the Last Layer. Step 4: Permutation of the Last Layer. (Done!)• Used for speedsolving, solving quickly

Page 11: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Solving the Cube - Notation

• "Moves" or rotations are classified in letters, for notation• R = Right side, L = Left side (Always clockwise)• R' = Right side inverted, L' = Left side

inverted ... etc. (Always counter-clockwise)• Y, X and Z are rotations of the entire cube by

axis

Page 12: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Competitions

• First World Championship held in Munich, March 13, 1981

• From 2003, organized by The World Cube Association

• Mandatory to use a Stackmat Timer, a timing device

• Many types of competitions, such as blindfolded, underwater, using feet, fewest moves etc.

Page 13: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

World Records

• Fastest time: 5.55 seconds by Mats Valk• Best Average: 7.53 seconds by Feliks Zemdegs• Blindfolded: 26.36 seconds by Marcell Endrey• One Hand: 9.43 seconds by Giovanni Contardi• Robot: 5.27 seconds by CubeStormer II

Page 14: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Conclusion

• Invented over 30 years ago• Quintillions of combinations• Many variations of the cube and solving

methods• Dozens of competitions are held year-round• Lots of Fun!!!

Page 15: The Rubik's Cube From the history to the play. Table of Contents - Outline History - Invention - Inventor Ascent To Glory The Rubik's Cube - 3x3x3 - Other

Any Questions?


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