RubiksSolverDemo

Overview

This is an online solver for speedcubers that uses specific methods such as CFOP and ZZ. It is designed to perform solution searches for techniques like cross, X-Cross, and EOCross. Additionally, it supports the search for some algorithms for the last layer. Unlike the solver tool included with the timer, this tool is capable of advanced solution searches.

Basic Functions and Notes

• The following 13 solvers are currently available.

  • F2L Lite: Lite solver for cross, X-cross, XX-cross, XXX-cross, and XXXX-cross. Analyzer available.

  • Pairing: Lite solver for a free pair. Analyzer available.

  • Pseudo F2L Lite: Lite solver for pseudo cross, X-cross, XX-cross, and XXX-cross. Analyzer available.

  • Pseudo Pairing: Lite solver for a pseudo free pair. Analyzer available.

  • EOCross: Lite solver for EOCross, X-EOCross, XX-EOCross, XXX-EOCross, and XXXX-EOCross. Analyzer available.

  • LL Substeps Lite: Lite solver for last layer CP, CO, EP, and EO

  • LL Lite: Lite solver for last layer

  • LL AUF Lite: Lite solver for last layer and AUF

  • Two Phase: Two Phase solver using min2phase.js

  • F2L: Solver for cross, X-cross, XX-cross, XXX-cross, and XXXX-cross. Recommended for use with PC. Analyzer available.

  • LL Substeps: Solver for last layer CP, CO, EP, and EO. Recommended for use with PC.

  • LL: Solver for last layer. Recommended for use with PC.

  • LL AUF: Solver for last layer and AUF. Recommended for use with PC.

• Some solvers come with an analyzer that solves for each pattern one at a time and displays the shortest number of moves in HTM in a table. The numbered cells in this table act as buttons to start the search with that condition. You can click the header to sort the table by its columns. Select the faces to analyze from U, D, L, R, F, and B.

• The following table shows the memory requirements for each solver. If memory is insufficient, the web page may crash (resulting in a forced reload). However, as mentioned below, it is possible to recover the page using the query parameter.

  Solver	Single Search	Analyzer
  F2L Lite	100 MB	100 MB
  Pairing	100 MB	200 MB
  Pseudo F2L Lite	100 MB	100 MB
  Pseudo Pairing	100 MB	400 MB
  EOCross	200 MB	200 MB
  LL Substeps Lite	100 MB	-
  LL Lite	100 MB	-
  LL AUF Lite	100 MB	-
  F2L	1.6 GB	100 MB
  LL Substeps	1.6 GB	-
  LL	1.6 GB	-
  LL AUF	1.6 GB	-

• The scramble is saved in a temporary array each time Scramble is edited. You can navigate to the previous or next input in the history by pressing the [⬅️] or [➡️] button. If there is no previous or next history, the corresponding button will not appear.

• Pressing the [Reverse] button reverses the alg of each row and sorts them in reverse order.

• Pressing the [Mirror] button mirrors the alg of each row.

• Pressing the [Random] button generates a random scramble using min2phase.js. The generated scramble is automatically annotated with the comment by “// setup”.

• After configuring the appropriate settings, you can start the search by pressing the [Start] button. While the search is in progress, the [Start] button will change to an [End] button, which you can press to stop the search.

• Each time a solution is found, a Details section will be created that includes an [Add] button, a Twisty Player, and various links, with the output being updated in real time. By pressing the [Add] button, you can add the solution to the Scramble.

• Whenever the input fields are updated, the query parameters will also be updated. If a search is performed, the first solution will be added to the query parameters.

• In rare cases, functions exported by Emscripten may not be initialized properly (especially on mobile devices). In such cases, a warning will be displayed, and you will be prompted to reload the page manually.

Input Description

• Scramble: This describes the state of a Rubik’s Cube using standard notations, and comments can also be added.
  • The following Rubik’s Cube notations are available:
    • Face Turns:
      • U U2 U2’ U’
      • D D2 D2’ D’
      • L L2 L2’ L’
      • R R2 R2’ R’
      • F F2 F2’ F’
      • B B2 B2’ B’
    • Wide Moves:
      • u u2 u2’ u’ Uw Uw2 Uw2’ Uw’
      • d d2 d2’ d’ Dw Dw2 Dw2’ Dw’
      • l l2 l2’ l’ Lw Lw2 Lw2’ Lw’
      • r r2 r2’ r’ Rw Rw2 Rw2’ Rw’
      • f f2 f2’ f’ Fw Fw2 Fw2’ Fw’
      • b b2 b2’ b’ Bw Bw2 Bw2’ Bw’
    • Slice Moves:
      • M M2 M2’ M’
      • E E2 E2’ E’
      • S S2 S2’ S’
    • Rotations:
      • x x2 x2’ x’
      • y y2 y2’ y’
      • z z2 z2’ z’
  • Comments can be written using “//”. It is recommended to place “// setup” comments on the appropriate line. When viewing on alg.cubing.net or cubedb.net, the line with “// setup” and above will be included in the Setup or Scramble section, while the lines below will be included in the Moves section.

• Rotation: Select a rotation alg before starting the search.

• Slot: Select F2L slots from BL (Back Left), BR (Back Right), FR (Front Right), and FL (Front Left). If none of the four slots are selected, meaning None is chosen, it will function as cross solver.

• Free Pair: Select a slot for solving the free pair from the slots other than the one selected in the Slot.

• Pseudo Slot Edge: Select slot edges from BL, BR, FR, and FL. If none of the four slots are selected, meaning None is chosen, it will function as a pseudo cross solver, which solves cross when D face misalignment is allowed.

• Pseudo Slot Corner: Select slot edges from BL, BR, FR, and FL. Dropbox for this will appear when anything other than None is selected for Pseudo Slot Edge.

• Free Pair Edge: Select a pseudo slot edge for solving the pseudo free pair from the slots other than the one selected in the Pseudo Slot Edge.

• Free Pair Corner: Select a pseudo slot corner for solving the pseudo free pair from the slots other than the one selected in the Pseudo Slot Corner.

• Last Layer Option: Select from CP, CO, EP, and EO. If none of these options are selected, meaning None is chosen, it will function as XXXX-cross solver.

• Max Length: The maximum number of moves in HTM for the solution to be searched.

• Max Count: The maximum number of solutions to be searched.

• Move restrict: Restrictions on the moves used in the search. For example, if URF is selected, the allowed moves are restricted to U U2 U’ R R2 R’ F F2 F’.

Solver Descriptions and Examples

F2L Lite

A set of solvers for Rubik’s Cube cross, X-cross, XX-cross, XXX-cross, and XXXX-cross. It is used to search solutions for cross, X-cross, F2L, multi-slotting, and more. The F2L solver can perform the same search. Here are some examples.

• Search solutions for yellow cross. [See on the website]

• Search solutions for white cross, when selecting a rotation alg from the Rotation. [See on the website]

• Search solutions for white cross, when input a rotation alg in the Scramble. [See on the website]

• Search solutions for white X-cross. [See on the website]

• Search solutions for 1st F2L, setting Move Restrict to URF. [See on the website]

• Search solutions for white XX-cross. [See on the website]

• Search solutions for white XXX-cross. [See on the website]

• Search solutions for white XXXX-cross (F2L skip). [See on the website]

• Search solutions for last two F2L slots, setting Move Restrict to URF. [See on the website]

Pairing

A set of solvers for a free pair. It is used to search solutions for cross with a free pair, advanced F2L setup, and more. Here are some examples.

• Search solutions for cross with a free pair. [See on the website]

• Search solutions for 3rd F2L and last pair, setting Move Restrict to URF. [See on the website]

Pseudo F2L Lite

A set of solvers for pseudo cross, X-cross, XX-cross, and XXX-cross. It is used to search solutions for pseudo X-cross, pseudo slotting, and more. Here are some examples.

• Search solutions for pseudo X-cross. [See on the website]

• Search solutions for adjecent pseudo XX-cross. [See on the website]

• Search solutions for diagonal pseudo XX-cross. [See on the website]

Pseudo Pairing

A set of solvers for a pseudo free pair. It is used to search solutions for pseudo cross with a pseudo free pair, some advanced pseudo slotting, and more. Here are some examples.

• Search solutions for pseudo cross with a pseudo free pair. [See on the website]

• Search solutions for 3rd pseudo slot and last pseudo pair, setting Move Restrict to UDR. [See on the website]

EOCross

A set of solvers for EOcross, X-EOcross, XX-EOcross, XXX-EOcross, and XXXX-EOCross. Here are some examples.

• Search solutions for EOCross (LR). [See on the website]

• Search solutions for EOCross (FB). [See on the website]

• Search solutions for X-EOCross (LR). [See on the website]

• Search solutions for XX-EOCross (FB). [See on the website]

LL Substeps Lite

A solver for last layer CP, CO, EP, and EO. It is used to search solutions for OLL, COLL, ZBLS, and more. The LL Substeps solver can perform the same search.

• Search solutions for OLL, setting Move Restrict to URF. [See on the website]

• Search solutions for ZBLS, setting Move Restrict to URF. [See on the website]

• Search solutions for COLL, setting Move Restrict to URF. [See on the website]

LL Lite

A solver for last layer. Note that AUF can remain. It is used to search solutions for PLL, 2GLL, ZBLL, 1LLL, and more Here are some examples. The LL solver can perform the same search.

• Search solutions for PLL, setting Move Restrict to URF. [See on the website]

• Search solutions for 2GLL, setting Move Restrict to UR. [See on the website]

LL AUF Lite

A solver for last layer and AUF. The LL AUF solver can perform the same search. It is recommended to use LL Lite or LL solver.

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