Difference between revisions of "User:Code Monkey/F2L Notes"

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(Dead Split Pair, Back Opposite)
 
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== The Pair ==
 
== The Pair ==
 
[[Image:F2L01.png]]
 
[[Image:F2L01.png]]
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== Twisted Split Pair, Perpendicular ==
 
== Twisted Split Pair, Perpendicular ==
 
[[Image:F2L05.png]]
 
[[Image:F2L05.png]]
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== Crossed Split Pair ==
 
== Crossed Split Pair ==
 
[[Image:F2L09.png]]
 
[[Image:F2L09.png]]
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== Sideways Pair ==
 
== Sideways Pair ==
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== Dead Split Pair, Back Opposite ==
 
== Dead Split Pair, Back Opposite ==
 
[[Image:F2L19.png]]
 
[[Image:F2L19.png]]
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Move the back half to '''its own color''', '''hide''' it in the '''far corner''', then move the top half to '''make the pair'''.
 
Move the back half to '''its own color''', '''hide''' it in the '''far corner''', then move the top half to '''make the pair'''.
  
{{Alg|U [R: U2'] . U [R: U']|F2L}}
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{{Alg|U [R: U2'] . [R', F]|F2L}}
{{Alg|U' [F': U2] . U' [F': U]|F2L}}
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{{Alg|U' [F': U2] . [F, R']|F2L}}
  
 
Becomes '''The Pair'''.
 
Becomes '''The Pair'''.
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Front half faces '''upward''', back half is '''near its top color'''.
 
Front half faces '''upward''', back half is '''near its top color'''.
  
'''Rotate''' the front half '''parallel''' to the back half. '''Clear''' that face, then return, forming a '''split pair'''.  
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Make the pair '''in the back''', then '''place it''' before restoring.
  
{{Alg|[R: U'] . U2' [R: U]|F2L}}
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{{Alg|[(y) F R : U2]|F2L}}
{{Alg|[F': U] . U2 [F': U']|F2L}}
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{{Alg|[F' L': U2]|F2L}}
 
 
Becomes '''Split Pair'''.
 
  
 
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== Dead Pair ==
 
== Dead Pair ==
 
[[Image:F2L23.png]]
 
[[Image:F2L23.png]]
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== Prodigal Son ==
 
== Prodigal Son ==
 
[[Image:F2L25.png]]
 
[[Image:F2L25.png]]
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== Upward Pair ==
 
== Upward Pair ==
 
[[Image:F2L31.png]]
 
[[Image:F2L31.png]]
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{{Alg|U2 [R: U'] . U' [F': U']|F2L}}
 
{{Alg|U2 [R: U'] . U' [F': U']|F2L}}
{{Alg|U2' [F': U] . U [R: U R']|F2L}}
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{{Alg|U2' [F': U] . U [R: U]|F2L}}
  
 
Becomes '''Split Pair'''.
 
Becomes '''Split Pair'''.
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== Downward Pair ==
 
== Downward Pair ==
 
[[Image:F2L37.png]]
 
[[Image:F2L37.png]]
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|
  
== Twisted Downward Pair ==
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== Downward Twisted Pair ==
 
[[Image:F2L38.png]]
 
[[Image:F2L38.png]]
  

Latest revision as of 05:17, 14 May 2016

Base Cases

The Pair

F2L01.png F2L02.png

Move the pair forward, then make room and slot it in.

Speedsolving Logo tiny.gif F2L U [R: U']
Speedsolving Logo tiny.gif F2L U' [F': U]


Split Pair

F2L03.png F2L04.png

Front half faces forward, would be correctly placed by turning downward. Back half is parallel to forward direction and oppositely colored.

Bring the pair together, then move it forward and return.

Speedsolving Logo tiny.gif F2L [F': U']
Speedsolving Logo tiny.gif F2L [R: U]


Reposition Edge

Twisted Split Pair, Perpendicular

F2L05.png F2L06.png

Front half faces forward, back half lies perpendicular and is similarly colored.

Move backward, then hide the front half in the corner and move the back half in to make the pair.

Speedsolving Logo tiny.gif F2L U' [R: U . U2 [R: U']]
Speedsolving Logo tiny.gif F2L U [F': U' . U2' [F': U]]


Becomes The Pair.

Twisted Split Pair, Parallel

F2L07.png F2L08.png

Front half faces forward, back half lies parallel and is similarly colored.

Move backward, then hide the front half in the corner and move the back half in (by a half-turn) to make the pair.

Speedsolving Logo tiny.gif F2L U' [R: U2 . U2 [R: U']]
Speedsolving Logo tiny.gif F2L U [F': U2' . U2' [F': U]]


Becomes The Pair.

Reposition Edge and Flip Corner

These involve a quarter-turn if the white face of the front half faces down when hidden in the corner, and a half-turn if it faces to the side.

Mnemonic: The white face is a foot dragging behind, slowing rotation down to a quarter-turn.

Crossed Split Pair

F2L09.png F2L10.png

Split pair, but back half lies perpendicular.

Move forward, then hide the front in the corner, then move the back half into position for the split pair.

Speedsolving Logo tiny.gif F2L U [F': U' . U' [F': U']]
Speedsolving Logo tiny.gif F2L U' [R: U . U [R: U])]


Becomes Split Pair.

Back Right Slot Open: R' U R2 U R'

Twisted Pair

F2L11.png F2L12.png

Pair, but the back half is twisted.

Move backward, then hide the front half in the corner and move the back half into position (by a half-turn) for a split pair.

Speedsolving Logo tiny.gif F2L U' [R: U2 . U [F': U']]
Speedsolving Logo tiny.gif F2L U [F': U2' . U' [R: U]]


Becomes Split Pair.

Back right slot open: R' U2 R2 U R'

Twisted Sideways Pair

F2L13.png F2L14.png

Front half faces sideways, back half oppositely colored. Each side faces "correctly."

Move backward, hide the front half in the corner, and position the back half for a split pair.

Speedsolving Logo tiny.gif F2L U [F': U . U' [F': U']]


Back right slot open : R' U R F' U' F

Speedsolving Logo tiny.gif F2L U' [R: U' . U [R: U]]


Becomes Split Pair.

Split Pair by Going Over

These have an opposite pattern to the above: If the white face is down, it's a half-turn.

Mnemonic: Each of these is a “slingshot”; flinging something sideways (i.e. the front, or white part, isn't forward) won't send it as far.

Sideways Pair

F2L15.png F2L16.png

Front half faces sideways, back half similarly colored (on top).

Lean back, then move backward to cut. Return, forming a split pair.

Speedsolving Logo tiny.gif F2L [F': U . U2' [R: U]]

Front left slot open: U (R U' R') D (R U' R') D'

Back right slot open: U' (R' U R U') (R U R')

Speedsolving Logo tiny.gif F2L [R: U' . U2 [F': U']]


Becomes Split Pair.

Dead Twisted Pair

F2L17.png F2L18.png

Front half faces upward, back half attached on its own side and oppositely colored.

Lean back, then move backward a half-turn to cut. Return, forming a split pair.

Speedsolving Logo tiny.gif F2L [R: U2 . U' [R: U]]
Speedsolving Logo tiny.gif F2L [F': U2' . U [F': U']]


Becomes Split Pair.

Pair Made on Side

Dead Split Pair, Back Opposite

F2L19.png F2L20.png

Front half faces upward, back half is opposite its top color.

Move the back half to its own color, hide it in the far corner, then move the top half to make the pair.

Speedsolving Logo tiny.gif F2L U [R: U2' . [R', F]]
Speedsolving Logo tiny.gif F2L U' [F': U2 . [F, R']]


Becomes The Pair.

Dead Split Pair, Back Adjacent

F2L21.png F2L22.png

Front half faces upward, back half is near its top color.

Make the pair in the back, then place it before restoring.

Speedsolving Logo tiny.gif F2L [(y) F R : U2]
Speedsolving Logo tiny.gif F2L [F' L': U2]


Weird

Dead Pair

F2L23.png F2L24.png

Front half faces upward, back half attached and similarly colored (on the front).

Just … just do as the man says.

Speedsolving Logo tiny.gif F2L U [F, R' . U [R: U]]
Speedsolving Logo tiny.gif F2L U' [R', F . U' [F: U']]


Becomes Split Pair.

Corner In Place

Prodigal Son

F2L25.png F2L26.png

Front half is correct; back half is on the side matching its outward color.

Move the back half away, flip the front half up, then return the back half and bring together the pair.

Speedsolving Logo tiny.gif F2L U' [F': U . U [R: U']]
Speedsolving Logo tiny.gif F2L U [R: U' . U' [F': U]]


If the back right slot is open:

Speedsolving Logo tiny.gif F2L R2 U' R' U R2


Becomes The Pair.

Posing Outward

F2L27.png F2L28.png

Back half is on its own side; front half is in place but facing the other side.

Hide the back half in the corner, then bring the front half toward it to make the pair in the corner.

Speedsolving Logo tiny.gif F2L [R: U' . U [R: U']]
Speedsolving Logo tiny.gif F2L [F': U . U' [F': U])]


Becomes The Pair.

Posing Forward

F2L29.png F2L30.png

Back half is on its own side; front half is in place but facing that same side.

Hide the back half in the far corner, move the front half away, then restore to form a split pair.

Speedsolving Logo tiny.gif F2L [F': U' . U [F': U']]
Speedsolving Logo tiny.gif F2L [R: U . U' [R: U]]


Becomes Split Pair.

Edge In Place

Upward Pair

F2L31.png

Pair in its own corner, facing upward.

Extract the pair and place it.

Speedsolving Logo tiny.gif F2L [R: U' . U [F': U]]


Becomes The Pair.

Upward Twisted Pair

F2L32.png

Twisted Pair in its own corner, facing upward.

Extract the pair, splitting it while restoring, forming Posing Forward.

Speedsolving Logo tiny.gif F2L [R: U . U' [R: U] . U' [R: U]]


Becomes Posing Forward.

Standing Pair

F2L33.png F2L34.png

Back half correct; front half facing outward.

Split the pair by moving the front backward; hide the front in the corner, then move to form the pair.

Speedsolving Logo tiny.gif F2L U' [R: U' . U2 [R: U']]
Speedsolving Logo tiny.gif F2L U [F': U . U2' [F': U]]


Becomes The Pair.

Standing Twisted Pair

F2L35.png F2L36.png

Back half in place but flipped; front half facing outward.

Split the pair by moving the front forward a half-turn; move the back half out the other way, then clear that face, making a split pair.

Speedsolving Logo tiny.gif F2L U2 [R: U' . U' [F': U']]
Speedsolving Logo tiny.gif F2L U2' [F': U . U [R: U]]


Becomes Split Pair.

Both In Place

Downward Pair

F2L37.png

Solved.

Downward Twisted Pair

F2L38.png

Like Downward Pair, but twisted.

Extract the twisted pair.

Speedsolving Logo tiny.gif F2L [R: U . U2 [R: U2] . U [F': U']]


Becomes Twisted Pair.

Hanging Twisted Pair

F2L39.png F2L40.png

Back is correct; front is in place but facing outward.

Turn the pair so that white faces up, then split it while restoring, forming a twisted split pair.

Speedsolving Logo tiny.gif F2L [R: U' . U' [R: U] . U2 [R: U']]
Speedsolving Logo tiny.gif F2L [F': U . U [F': U'] . U2' [F': U]]


Becomes Twisted Split Pair, Perpendicular.

Hanging Pair

F2L41.png F2L42.png

Back is in place but flipped; front is in place but facing outward.

Turn the pair so that white faces up, then split it while restoring, forming a crossed split pair.

Speedsolving Logo tiny.gif F2L [R: U' . U' [R: U'] . U [F': U']]
Speedsolving Logo tiny.gif F2L [F': U . U [F': U] . U' [R: U]]


Becomes Crossed Split Pair.