Difference between revisions of "8355 Method"
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|year | |year | ||
|anames | |anames | ||
− | |variants=[[Sexy Method]] | + | |variants=[[Sexy Method]], [[MirIS]], [[Y-Move Method]] |
|algs=1 to 3 | |algs=1 to 3 | ||
|steps=6 | |steps=6 | ||
|moves=100+ | |moves=100+ | ||
|purpose=<sup></sup> | |purpose=<sup></sup> | ||
− | * [[Beginner | + | * [[Beginner method]] |
}} | }} | ||
− | + | {{Method Header | |
+ | |listofsteps=[[Cross]] -> [[3C]] -> [[+3E edg keyhole]] -> [[F2L-1:+5E]] -> [[5CM:Sexy*+S]] | ||
+ | |description=The [[8355 Method]] is a [[:Category:3x3x3 beginner methods|3x3x3 beginner method]]. | ||
+ | }} | ||
+ | |||
+ | The '''8355 Method''' is a [[:Category:3x3x3 beginner methods|3x3x3 beginner method]] invented by [[Reheart Sheu]]. It is similar to [[Layer by layer]] but is novel for using only one basic algorithm - the [[Sexy Move]] and its mirrors. | ||
==Procedure== | ==Procedure== | ||
− | |||
− | + | ===[[Cross|'''Solve the cross''']]=== | |
+ | ''(intuitive)'' Use the [[Cross]] step to have the [[Cross cube state]]. | ||
− | + | ===[[Cross:3C|'''Solve 3 corners''']]=== | |
+ | Use the [[Cross:3C]] step to have the [[1st Layer-1C cube state]] : | ||
+ | * ''(Beginner)'' Holding the cross on D, place D-layer corners above their position in the U-layer and repeat the [[sexy move]] ('''R U R' U'''') until placed. | ||
+ | * ''(Advanced)'' Intuitive | ||
− | + | ===[[+3E edg keyhole|'''Solve 3 E-slice edges''']]=== | |
+ | Use the [[+3E edg keyhole]] step to have the [[F2L-1 cube state]] (see [[Keyhole]] method) | ||
+ | (Or by application of the alg '''R' U' R' U' R' U R U R''' and/or its mirror '''L U L U L U' L' U' L' ''') | ||
− | * '''Solve the final 2 edges''': Swap the FR E-slice edge with the edge in UF without disturbing the other edges using the alg '''R U R' U R U R' ''' or its mirror '''F' U' F U' F' U' F''', depending on the orientation of the edge in the slot. | + | ===[[F2L-1:+5E|'''Solve remaining edges''']]=== |
+ | Use the [[F2L-1:+5E]] step to have the [[5 Corners Missing cube state]]: | ||
+ | * ''(Beginner)'' This can be done in 2 substeps ([[8355 keyhole method]]) : | ||
+ | ** [[F2L-1:+3U edg|'''Solve 3 U-layer edges''']]: (intuitive) Hold the remaining unsolved corner+edge positions in the front-right. Using R or F', place a U-layer edge into the correct position. Now twist the U layer to replace it with an unsolved U-layer edge and undo the original R' or F move. Repeat until 3 U-layer edges are solved. | ||
+ | ** [[F2L-1+3U:Last 2edg|'''Solve the final 2 edges''']]: Swap the FR E-slice edge with the edge in UF without disturbing the other edges using the alg '''R U R' U R U R' ''' or its mirror '''F' U' F U' F' U' F''', depending on the orientation of the edge in the slot. | ||
− | * '''Solve the final 5 corners''': Flip the cube over so that 4 of the remaining corners are in the D-layer and the other remaining corner is in the FR position of the U-layer. The corner in the U layer will be used as a 'buffer'. | + | ===[[5CM:Sexy*+S|'''Solve the final 5 corners''']]=== |
+ | Use the [[5CM:Sexy*+S]] step to have the [[Solved cube state]]: | ||
+ | Flip the cube over so that 4 of the remaining corners are in the D-layer and the other remaining corner is in the FR position of the U-layer. The corner in the U layer will be used as a 'buffer'. | ||
# If the corner in the buffer does not belong in the D-layer apply the alg '''R U R' U' ''' (the [[sexy move]]) once to place a D-layer corner into the buffer. | # If the corner in the buffer does not belong in the D-layer apply the alg '''R U R' U' ''' (the [[sexy move]]) once to place a D-layer corner into the buffer. | ||
# Twist the D-layer until the corner in the buffer position is directly above its correct position in the D-layer. | # Twist the D-layer until the corner in the buffer position is directly above its correct position in the D-layer. | ||
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# Repeat steps 1 to 3 until only 1 unsolved corner remains in the D-layer. | # Repeat steps 1 to 3 until only 1 unsolved corner remains in the D-layer. | ||
# Position the final unsolved D-layer corner under the buffer piece. | # Position the final unsolved D-layer corner under the buffer piece. | ||
− | # Repeat the alg '''R U R' U' ''' until either the whole cube is solved or only 2 unsolved corners remain. | + | # Repeat the alg '''R U R' U' ''' until either the whole cube is solved or only 2 unsolved corners remain. If the final D corner is solved resulting in a fully solved D layer but the rest of the cube is unsolved, '''continue applying the algorithm''' until you are left with two unsolved corners, then continue with the instructions below. |
# Rotate the whole cube so that the D-layer now contains the 2 unsolved corners, re-assigning a solved corner in the U-layer as the new buffer piece. | # Rotate the whole cube so that the D-layer now contains the 2 unsolved corners, re-assigning a solved corner in the U-layer as the new buffer piece. | ||
# Repeat steps 2 and 3 until the cube is solved. | # Repeat steps 2 and 3 until the cube is solved. | ||
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[http://alg.garron.us/?alg=D_R_U_R-_U-_._D_R_U_R-_U-_._D_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_._D-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_x-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_D-_R_U_R-_U-_R_U_R-_U-_D_x_D2&ini=D2_R_U_R-_D_R_U-_R-_D-_R_U_R-_D-_R_U-_R-_D-&scheme=brogwy Click for animation] | [http://alg.garron.us/?alg=D_R_U_R-_U-_._D_R_U_R-_U-_._D_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_._D-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_x-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_R_U_R-_U-_D-_R_U_R-_U-_R_U_R-_U-_D_x_D2&ini=D2_R_U_R-_D_R_U-_R-_D-_R_U_R-_D-_R_U-_R-_D-&scheme=brogwy Click for animation] | ||
− | == See | + | == See also == |
* [[Layer-By-Layer]] | * [[Layer-By-Layer]] | ||
* [[Keyhole Method]] | * [[Keyhole Method]] | ||
* [[Sexy Move]] | * [[Sexy Move]] | ||
+ | * [[Y-Move Method]] | ||
− | == External | + | == External links == |
* Speedsolving.com: [http://www.speedsolving.com/forum/showthread.php?t=10158 8355 method: easy way to solve cube?] | * Speedsolving.com: [http://www.speedsolving.com/forum/showthread.php?t=10158 8355 method: easy way to solve cube?] | ||
* Speedsolving.com: [http://www.speedsolving.com/forum/showthread.php?t=11654 8355 Modified] | * Speedsolving.com: [http://www.speedsolving.com/forum/showthread.php?t=11654 8355 Modified] | ||
Line 128: | Line 145: | ||
* [http://translate.google.com/translate?prev=hp&hl=en&js=y&u=http%3A%2F%2Fteach.ymhs.tyc.edu.tw%2Ft1086%2FRC%2Fl3-8355%2F8355.htm&sl=zh-CN&tl=en&history_state0= Chinese Tutorial] (translated to English) | * [http://translate.google.com/translate?prev=hp&hl=en&js=y&u=http%3A%2F%2Fteach.ymhs.tyc.edu.tw%2Ft1086%2FRC%2Fl3-8355%2F8355.htm&sl=zh-CN&tl=en&history_state0= Chinese Tutorial] (translated to English) | ||
* [http://chcooboo.blogspot.com/2008/01/8355_29.html Chinese Video] | * [http://chcooboo.blogspot.com/2008/01/8355_29.html Chinese Video] | ||
+ | * [https://www.youtube.com/watch?v=1jYZBhnBdmE&list=PLDHYNpVcdbTEKDLg0kwxSxWTgUkm4izu8 German Tutorial] | ||
− | + | [[Category:3x3x3 methods]] | |
− | [[Category:3x3x3 | + | [[Category:3x3x3 beginner methods and substeps]] |
− | [[Category:3x3x3 |
Latest revision as of 10:57, 24 January 2023
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The 8355 Method is a 3x3x3 beginner method invented by Reheart Sheu. It is similar to Layer by layer but is novel for using only one basic algorithm - the Sexy Move and its mirrors.
Procedure
Solve the cross
(intuitive) Use the Cross step to have the Cross cube state.
Solve 3 corners
Use the Cross:3C step to have the 1st Layer-1C cube state :
- (Beginner) Holding the cross on D, place D-layer corners above their position in the U-layer and repeat the sexy move (R U R' U') until placed.
- (Advanced) Intuitive
Solve 3 E-slice edges
Use the +3E edg keyhole step to have the F2L-1 cube state (see Keyhole method) (Or by application of the alg R' U' R' U' R' U R U R and/or its mirror L U L U L U' L' U' L' )
Solve remaining edges
Use the F2L-1:+5E step to have the 5 Corners Missing cube state:
- (Beginner) This can be done in 2 substeps (8355 keyhole method) :
- Solve 3 U-layer edges: (intuitive) Hold the remaining unsolved corner+edge positions in the front-right. Using R or F', place a U-layer edge into the correct position. Now twist the U layer to replace it with an unsolved U-layer edge and undo the original R' or F move. Repeat until 3 U-layer edges are solved.
- Solve the final 2 edges: Swap the FR E-slice edge with the edge in UF without disturbing the other edges using the alg R U R' U R U R' or its mirror F' U' F U' F' U' F, depending on the orientation of the edge in the slot.
Solve the final 5 corners
Use the 5CM:Sexy*+S step to have the Solved cube state: Flip the cube over so that 4 of the remaining corners are in the D-layer and the other remaining corner is in the FR position of the U-layer. The corner in the U layer will be used as a 'buffer'.
- If the corner in the buffer does not belong in the D-layer apply the alg R U R' U' (the sexy move) once to place a D-layer corner into the buffer.
- Twist the D-layer until the corner in the buffer position is directly above its correct position in the D-layer.
- Repeat the alg R U R' U' until the corner in the buffer position is placed correctly in the D-layer.
- Repeat steps 1 to 3 until only 1 unsolved corner remains in the D-layer.
- Position the final unsolved D-layer corner under the buffer piece.
- Repeat the alg R U R' U' until either the whole cube is solved or only 2 unsolved corners remain. If the final D corner is solved resulting in a fully solved D layer but the rest of the cube is unsolved, continue applying the algorithm until you are left with two unsolved corners, then continue with the instructions below.
- Rotate the whole cube so that the D-layer now contains the 2 unsolved corners, re-assigning a solved corner in the U-layer as the new buffer piece.
- Repeat steps 2 and 3 until the cube is solved.
Advancements
There are a number of advancements which can be made to lower the move-count and improve speed of execution. Here are a few of them:
- Solving the Cross: Minimise move count and plan the entire cross during inspection
- First 3 Corners: Use the inverse of the sexy move to reduce the number of repetitions required. For maximal efficiency, depending on the corner orientation use one of:
- R U R'
- F' U' F
- R B U2 B' R'
- Solve 3 E-slice edges: Combine first 3 corners and edges into one step by joining corner + edge pairs in the U-layer and inserting as a pair, see F2L
- Solve U-Layer edges: Try also building corner/edge pairs while solving the edges to reduce the number of corners left at the end, see Heise Method.
- Last 5 corners: Use the inverse of the sexy move (U R U' R') for corners requiring 5-repetitions of the sexy move. More advanced: Use more efficient commutators to solve several corners simultaneously. See last step of Heise Method.
Example Solves
A Complete Solve
Scramble: F2 D' B2 R2 B2 D U2 L2 U' B2 F D2 B D2 R2 U' F R F' L' D'
- Cross (intuitive): R' L' F U L R2 B2
- Insert 3x D-layer corners:
- (RUR'U')
- y' (RUR'U')
- y' d (RUR'U')*3
- Insert 3x E-slice edges:
- y2 (R'U'R'U'R'URUR)
- d2 (R'U'R'U'R'URUR)
- y' U' (R'U'R'U'R'URUR)
- Place 3x U-layer edges (intuitive):
- y2 U2 R U' R' . y L' U L
- Bring final U-layer edge into slot:
- y' (RUR'URUR')
- Now insert it into position:
- y U (L'U'LU'L'U'L)
- Flip cube over to solve final corners:
- x2 y2 D (RUR'U')*3
- D (RUR'U')
- D2 (RUR'U')*5
- D2 (RUR'U')*3 D2
Final 5 Corners: dealing with 2 unoriented corners
Scramble: R U R' D R U' R' D' R U R' D' R U' R' D
- D' (R U R' U') - first corner
- D (R U R' U') - bring second corner into buffer
- D (R U R' U')*5 - solve second corner
- D' (R U R' U') - third corner. Notice, the corner is solved but the rest of the cube is scrambled.
- (R U R' U')*4 - repeat alg until the cube is solved except for two unoriented corners.
- x' - re-assign d-layer to contain the 2 unsolved corners.
- (R U R' U')*4 - solve the first one
- D' (R U R' U')*2 - finally, solve the second one.
Final 5 Corners: another example
Scramble: D2 R U R' D R U' R' D' R U R' D' R U' R' D'
- D (R U R' U') - first corner.
- D (R U R' U') - bring second corner into buffer.
- D (R U R' U')*5 - solve second corner.
- D' (R U R' U')*5 - attempt to solve third corner. Not possible, so repeat until only 2 unsolved corners remain.
- x' - rotate cube so that 2 corners are in the D-layer.
- (R U R' U')*4 - solve first unoriented corner.
- D' (R U R' U')*4 D - solve second unoriented corner.
- x D2 - fix bottom layer.
See also
External links
- Speedsolving.com: 8355 method: easy way to solve cube?
- Speedsolving.com: 8355 Modified
- Speedsolving.com: 8355 - Problems with last 5 corners
- Chinese Tutorial
- Chinese Tutorial (translated to English)
- Chinese Video
- German Tutorial