Jessica Fridrich is a professor at Binghamton University, who specializes in data hiding applications in digital imagery. She is also known for documenting and popularizing the CFOP method, one of the most commonly used methods for speedsolving the Rubik's Cube, also known as speedcubing.[1] She is considered as one of the pioneers of speedcubing, along with Lars Petrus. Nearly all of the fastest speedcubers have based their methods on Fridrich's, usually referred to as CFOP (Cross, First 2 Layers, Orient Last Layer, Permuting Last Layer). The method describes solving the cube in a layer-by-layer fashion. First a so-called "cross" is made on the first layer, consisting of the center piece and four edges. The first layer corners and edges of the second layer are put into their correct positions simultaneously (four pairs). The last layer is solved by first orienting and then permuting the last layer of the cube using a few sets of algorithms.


1 Professional life 2 See also 3 References 4 External links

Professional life[edit] Jessica Fridrich works as a professor at the Department of Electrical and Computer Engineering at Binghamton University and specializes in digital watermarking and forensics.[2][3][4] She received her MS degree in applied mathematics from the Czech Technical University in Prague in 1987, and her PhD in systems science from Binghamton University in 1995.[2] See also[edit]

CFOP Method


^ a b c Specializing in Problems That Only Seem Impossible to Solve, By BINA VENKATARAMAN, Published: December 15, 2008, The New York Times ^ a b "Jessica Fridrich". Hindawi Publishing Corporation. February 14, 2002. Retrieved April 19, 2012.  ^ Jessica Fridrich, Talk on Youtube ^ Bio:Jessica Fridrich, Binghamton University

External links[edit]

Jessica Fridrich's webpage Rubik's Cube World Championship in Budapest in 1982 Rubik's Cube competition rankings Jessica Fridich : page en français

v t e

Rubik's Cube

Puzzle inventors

Ernő Rubik Uwe Mèffert Tony Fisher Panagiotis Verdes Oskar van Deventer

Rubik's Cubes

Overview 2×2×2 (Pocket Cube) 3×3×3 (Rubik's Cube) 4×4×4 (Rubik's Revenge) 5×5×5 (Professor's Cube) 6×6×6 (V-Cube 6) 7×7×7 (V-Cube 7) 8×8×8 (V-Cube 8)

Cubic variations

Helicopter Cube Skewb Square 1 Sudoku Cube Nine-Colour Cube Void Cube

Non-cubic variations


Pyraminx Pyraminx Duo Pyramorphix BrainTwist


Skewb Diamond


Megaminx (Variations) Pyraminx Crystal Skewb Ultimate


Impossiball Dogic

Great dodecahedron

Alexander's Star

Truncated icosahedron



Floppy Cube (1x3x3) Rubik's Domino (2x3x3)

Virtual variations (>3D)

MagicCube4D MagicCube5D MagicCube7D Magic 120-cell


Missing Link Rubik's 360 Rubik's Clock Rubik's Magic

Master Edition

Rubik's Revolution Rubik's Snake Rubik's Triamid

Renowned solvers

Erik Akkersdijk Yu Nakajima Bob Burton, Jr. Jessica Fridrich Chris Hardwick Kevin Hays Rowe Hessler Leyan Lo Shotaro Makisumi Toby Mao Tyson Mao Frank Morris Lars Petrus Gilles Roux David Singmaster Ron van Bruchem Eric Limeback Anthony Michael Brooks Mats Valk Feliks Zemdegs Collin Burns Lucas Etter Max Park





Layer by Layer CFOP Method Roux Method Corners First Optimal


God's algorithm Superflip Thistlethwaite's algorithm Rubik's Cube group

Official organization

World Cube Association

Related articles

Rubik's Cube in popular culture The Simple Solution to Rubik's Cube 1982 World Rubik's Cube Championship

Authority control

WorldCat Identities BIBSYS: 6001971 DBLP: f/JessicaJFridrich ISNI: 0000 0000 4466 335X LCCN: nb2004312295 MGP: 89460 SUDOC: 083547177 VI