Lesson plan

CFOP method

The CFOP method, also known as the Fridrich method, is one of the most widely used methods for speedsolving the 3×3×3 Rubik's Cube. CFOP stands for Cross, First Two Layers (F2L), Orientation of the Last Layer (OLL), and Permutation of the Last Layer (PLL). Alongside the Roux and ZZ methods, it is regarded as one of the fastest and most popular methods used in competitive speedcubing. The method was first developed in the early 1980s through the combined innovations of several speedcubers. Jessica Fridrich, a Czech speedcuber after whom the method is commonly named, is generally credited with popularizing it after publishing her approach online in 1997. The method begins by solving a cross, typically on the bottom face of the cube, before solving the first two layers simultaneously (F2L). The final layer is then completed in two stages: first by orienting its pieces (OLL) and then by permuting them into their correct positions (PLL). Learning the full method requires memorizing 119 algorithms: 41 for F2L, 57 for full OLL, and 21 for full PLL. Additional algorithm sets, such as ZBLL (Zborowski–Bruchem Last Layer) with 493 algorithms(which include 21 PLLs) and COLL (Corners of the Last Layer) with 42 algorithms, can also be learned to further improve solving efficiency.…

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Article summary

The CFOP method, also known as the Fridrich method, is one of the most widely used methods for speedsolving the 3×3×3 Rubik's Cube. CFOP stands for Cross, First Two Layers (F2L), Orientation of the Last Layer (OLL), and Permutation of the Last Layer (PLL). Alongside the Roux and ZZ methods, it is regarded as one of the fastest and most popular methods used in competitive speedcubing. The method was first developed in the early 1980s through the combined innovations of several speedcubers. Jessica Fridrich, a Czech speedcuber after whom the method is commonly named, is generally credited with popularizing it after publishing her approach online in 1997. The method begins by solving a cross, typically on the bottom face of the cube, before solving the first two layers simultaneously (F2L). The final layer is then completed in two stages: first by orienting its pieces (OLL) and then by permuting them into their correct positions (PLL). Learning the full method requires memorizing 119 algorithms: 41 for F2L, 57 for full OLL, and 21 for full PLL. Additional algorithm sets, such as ZBLL (Zborowski–Bruchem Last Layer) with 493 algorithms(which include 21 PLLs) and COLL (Corners of the Last Layer) with 42 algorithms, can also be learned to further improve solving efficiency.…

Key claims

  1. publication date: 1980 — source: Wikipedia · confidence 0.95
  2. publication date: 1981 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the publication date is "1980". What evidence would count against this claim?
  3. The record states that the publication date is "1981". What evidence would count against this claim?
  4. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  5. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1374025540

Key claims and bibliography are generated from the same tracked claims and sources as the article page.