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Then, continuing to solve the first two layer (F2L).Īfterwards, orienting the last layer (OLL). First, they made the first cross on the bottom. The method is invented by Jessica Fridrich. The Fridrich Method is commonly used in Speedcubing. The last layer is solved by first orienting and then permuting the last layer of the cube using a few sets of algorithms. The first layer corners and edges of the second layer are put into their correct positions simultaneously (four pairs). First a so-called 'cross' is made on the first layer, consisting of the center piece and four edges. The method describes solving the cube in a layer-by-layer fashion.

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). She is considered as one of the pioneers of speedcubing, along with. She is also known for documenting and popularizing the method, one of the most commonly used methods for speedsolving the, also known as. Jessica Fridrich Born 1963/1964 (age 53–54) Nationality Occupation Electrical engineering professor Known for Popularizing the method for speed-solving the Jessica Fridrich is a professor at, who specializes in data hiding applications in digital imagery.

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/:, with many algorithms developed by During the resurgence in speedcubing's popularity in the late '90s and early 2000s, there was a general lack of information on the sport.Simplified Fridrich Method.

The constituent techniques and their original proposers are as follows: In reality, many developments were made in the early '80s by other cubers who have contributed to the method in its current form.

Origin and Naming Dispute Jessica Fridrich is often erroneously credited as the sole inventor of CFOP.

Modern beginner methods use the same structure, making it the go-to stepping stone for most up-and-coming speedcubers.

CFOP has four major steps: solve a cross, complete the bottom two layers (F2L), form a solid color on top of the cube (OLL), and, finally, move the pieces of the top layer to their correct positions (PLL). The method gained traction after Jessica Fridrich published the method on her website in 1995, leading many to know it as the Fridrich method. The CFOP method was developed independently by multiple people in 1981, but didn’t become popular until the late 90s.