關於方塊的第三層 - 魔術方塊

By Jake
at 2006-11-06T01:22
at 2006-11-06T01:22
Table of Contents
有關於方塊的第三層 應觀眾要求
不過這也不算我的心得啦,這是偷國外網站的
前言
如果我們定義一個完成的方塊,是六面顏色相同
那如果我們在SCRAMBLE時,只做R D F
那各位高手還會用CFOP解回來嗎?
(謎之聲,錯是用CF法) <囧>
相信大家一定會用 F' D' R' 來解回來
那麼在相同的道理之下
其實每一個用SCRAMBLE轉亂的方塊
都是解的回來的
我稱這個過程為逆向
數學表示式為
EX R D F 的逆向
(R D F)'= F' D' R'
觀念開始
在第三層,我們可以簡單的分成四個步驟
分別是CO CP EO EP
(角翻面 角交換 邊翻面 邊交換)
我們可以利用第一層的方式來思考
EX EO 的CASE
▓▓▓
▓▓▕
▓▁▓
我們單純的只想翻一個邊
不管任意的方法
我先提供一個方法給大家
不過這個方法不是唯一
可以自已想
如果我使用 F E F2 E2 F
E=第二層轉,順逆同D(感謝OMEGA大大提供)
則第三層可出現
▓▓▓
▓▓▕
▓▓▓
但是下面兩層卻亂了
那如果我現在要整理好下面兩層
則使用(F E F2 E2 F)'
然後
剛剛那個
它又翻回來了 XD
有沒有發現一件事?
LET A=F E F2 E2 F
A的效果是第三層翻一顆
A'的效果也是第三層翻同一顆ㄟ
有一種賺到的感覺
還不懂?
狐小解釋給你聽
如果出現這CASE的話
我們使用
A + U + A' + U'
↑ ↑
放入另一個該翻的 把剛剛的U轉回來
同理可證 EP CO CP
EP 兩個交換,再兩個交換
CO 翻順時針,再翻逆時針
CP 兩個交換,再兩個交換
這邊提供每一個步驟的A
A'讓大家自已去想
也可以用自已的A,
在A結束後,請注意在轉第三層時,沒有前兩層的方塊被移動到
這個很重要,不然就會交換到第三層的東西
EP的A S M D' M' D2 S'
CO的A F D2 F' R' D2 R
CP的A L U' R D2 R' U L' (這個很特別 剛好A=A')
剩下的就自己試囉
以上,為狐小新版教學
如果還是沒辦法懂的話
版聚過來聊聊吧
有看懂請推!
--
Tags:
魔術方塊
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