Difference between revisions of "ZBLS"

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'''ZBF2L''' is short for ''[[Zbigniew Zborowski|Zborowski]]-[[Ron van Bruchem|Bruchem]] First Two Layers'', also sometimes called '''ZBLS''' (ZB Last Slot). It is a step of a method which involves algorithmically finishing the last [[corner]]-[[edge]] pair in [[F2L]], while simultaneously orienting the [[last layer]] edges. This is part of the [[ZB method]], but it can occasionally be useful for methods such as [[Fridrich]] or for [[Fewest Moves]] events.
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{{Substep Infobox
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|name=EOLS
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|image=
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|proposers=[[Zbigniew Zborowski]], [[Ron van Bruchem]]
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|year=
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|anames=ZBLS, ZBF2L
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|variants=[[F2L-1:form pair]]+[[VHLS]]
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|subgroup=
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|algs=302
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|moves=
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|purpose=
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|previous=[[F2L-1 cube state]]
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|next=[[LL:EO cube state]]
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}}
  
ZBF2L is not as useful on its own as its counterpart [[ZBLL]], although together they are very fast. The problem is that ZBF2L involves 125 algorithms (counting inverses and mirrors as the same algorithm) and has a total of 306 cases to learn. Only a handful of people have ever learned this step in its entirety. If you wish to learn it, it is useful to start by first learning normal one-step [[F2L]] and then learning [[VHF2L]], which is a two-step method that involves pairing up the F2L pair and then inserting it while orienting edges. Once you know VHF2L, learning ZBF2L should be only time-consuming and not difficult, since all it involves is doing two steps at once in fewer moves.
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'''EOLS''' (short for '''Edge Orientation Last Slot'''), also known as '''ZBLS'''  (short for '''[[Zbigniew Zborowski|Zborowski]]-[[Ron van Bruchem|Bruchem]] Last Slot''', earlier called '''ZBF2L''') is a 3x3 speedsolving substep to simultaneously solve the last [[corner]]-[[edge]] pair in [[F2L]] and orient the [[last layer]] edges. Originally proposed as part of the [[ZB method]], it can occasionally be useful for methods such as [[Fridrich]] or for [[Fewest Moves]].
  
== See Also ==
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EOLS is not as useful on its own as [[ZBLL]], although together they are very fast. The problem is that EOLS involves 125 algorithms (counting inverses and mirrors as the same algorithm) and has a total of 302 cases to learn. When combined with ZBLL, there are 795 algorithms. Only a handful of cubers have learned EOLS in its entirety. [[VHLS]], a two-step method that first makes the last pair and then inserting it while orienting edges, is a subset of EOLS corresponding to just one of the F2L cases.
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== Terminology change ==
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ZBLS was originally called ZBF2L; similarly, [[VHLS]] was originally called VHF2L. As more last-slot substeps were considered, several notable cubers began to call them all with the LS suffix.
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== See also ==
 
* [[ZB Method]]
 
* [[ZB Method]]
 
* [[ZBLL]]
 
* [[ZBLL]]
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* [[VHLS]]
  
== External Links ==
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== External links ==
 
* [http://www.cubezone.be/zbf2l.html ZBF2L] By Lars Vandenbergh
 
* [http://www.cubezone.be/zbf2l.html ZBF2L] By Lars Vandenbergh
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* [https://www.speedcubingtips.eu/zbls-zborowski-bruchem-last-slot/ ZBF2L/ZBLS by speedcubingtips.eu]
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* [https://tading.gitee.io/zbll/ZBF2L CE's ZB F2L Algs] (OH)
  
[[Category:F2LL Methods]]
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[[Category:3x3x3 last slot substeps]]
[[Category:Cubing Terminology]]
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[[Category:Acronyms]]
[[Category:Abbreviations and Acronyms]]
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[[Category:Advanced methods]]
[[Category:Advanced Methods]]
 
[[Category:Sub Steps]]
 

Revision as of 09:56, 30 July 2019

EOLS
[[Image:]]
Information
Proposer(s): Zbigniew Zborowski, Ron van Bruchem
Proposed:
Alt Names: ZBLS, ZBF2L
Variants: F2L-1:form pair+VHLS
Subgroup:
No. Algs: 302
Avg Moves:
Purpose(s):


EOLS (short for Edge Orientation Last Slot), also known as ZBLS (short for Zborowski-Bruchem Last Slot, earlier called ZBF2L) is a 3x3 speedsolving substep to simultaneously solve the last corner-edge pair in F2L and orient the last layer edges. Originally proposed as part of the ZB method, it can occasionally be useful for methods such as Fridrich or for Fewest Moves.

EOLS is not as useful on its own as ZBLL, although together they are very fast. The problem is that EOLS involves 125 algorithms (counting inverses and mirrors as the same algorithm) and has a total of 302 cases to learn. When combined with ZBLL, there are 795 algorithms. Only a handful of cubers have learned EOLS in its entirety. VHLS, a two-step method that first makes the last pair and then inserting it while orienting edges, is a subset of EOLS corresponding to just one of the F2L cases.

Terminology change

ZBLS was originally called ZBF2L; similarly, VHLS was originally called VHF2L. As more last-slot substeps were considered, several notable cubers began to call them all with the LS suffix.

See also

External links