Web application for practicing ZBLL
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README.md

ZBLL trainer

http://bestsiteever.ru/zbll/

The purpose of this project and its details are described on speedsolving forum in this post.

TODO list

  • generate more scrambles, remove 2gen scrambles
  • add custom presets saving feature
  • fix lauout issues on small displays (selection page)
  • show suggested alg (might be from Swanson's or Jabari's list)
  • add the anti-sune pictures angle setting.
  • different timer layout for smartphones

How it works

For each zbll case, there is a set of algorithms defined in scripts/casesmap.js from which the scramble is being randomly selected. After that, an additional procedure is performed to disguise the scramble (see applyRotationForAlgorithm() function in scripts/timer.js).
All the scrambles must satisfy these requirements:

  • No scramble should be too short or too long, otherwise it can expose the case
  • Scrambles shouldn't start or end up with the AUF (U layer move)
  • For each case, there should be enough scrambles to not let the user memorize them during practicing
  • For each case, scrambles should be as different from each other as possible
  • For each case, none of two scrambles should be each other's rotation (like R U L' D2 an F U B' D2) because such scrambles will generate the same set of four algs after applyRotationForAlgorithm()
  • Scrambles shouldn't be 2-gen (currently not implemented; there's a feature-request for that)

Contributing to zbll trainer

As you see, improving the scrambler basically boils down to generating a lot of different scrambles and adding them to the casesmap. You can help by doing it for separate cases or groups using CubeExplorer or similar tools, or maybe suggesting an entirely new approach to dealing with scrambles generation.
If you want to improve something else or add a new feature, please use pure JavaScript and do not use additional JS libraries. Feel free to submit issues and enhancement requests.

Contributing workflow

For contributing, follow the "fork-and-pull" Git workflow.

  1. Fork the repo on GitHub
  2. Clone the project to your own machine
  3. Commit changes to your own branch
  4. Push your work back up to your fork
  5. Submit a Pull request so that I can review your changes