魔方公式oll.doc

这页要写的是魔方高级玩法的第二步,顶层调整朝向,简称oll(orientationoflastlayer)。这一步的公式很多,是cfop里最难学背的一步,我建议可以先背21-27七个算法,这也就是入门玩法里面第四步对好顶层十字之后需要做的一步。十字的算法我建议用一字oll45:F(RUR'U')F'拐弯oll44:f(RUR'U')f'点oll2:oll45+oll44三个算法都很简单明了,分别对应右图中的三种情况(请注意,"一字"和"拐弯"摆放的方位也一定要按右图所示)。oll这步用很小的力气学到这种水平基本上就可以满足达到30秒以下的水平,大家开始的时候还是集中精力练好f2l,其次是pll(pll相对好学一些),oll可以留到最后,不过大家也不用太畏惧这么多算法,其实并不是很难背。最后的序号带'的算法是前面一些算法的多解,不是必须背的,大家可以酌情选用。魔方  下面除了1,21,55,56,57具有两轴对称性概率为1/108,20有四轴对称性概率为1/216,其他51个算法概率均为1/54,不具有对称性的都有一个镜像算法,比如3,4他们互为镜像手法不同,具有一轴对称性的没有镜像算法。所以大家除了21-27之外基本上可以随便顺序背,可以先挑简单的背,你碰到这些情况的概率基本上是一样的。魔方形态算法、动画和视频演示形态算法、动画和视频演示1)(RU'U')(R2'FRF')U2(R'FRF')2)(FRUR'U'F')(fRUR'U'f')3)f(RUR'U')f'U'F(RUR'U')F'4)f(RUR'U')yx(R'F)(RUR'U')F'5)(r'U2)(RUR'U)r6)(rU'U')(R'U'RU'r')7)rUR'URU'U'r'8)r'U'RU'R'U2r9)(R'U'R)y'x'(RU')(R'F)(RUR')10)(RUR'U)(R'FRF')(RU'U'R')11)r'(R2UR'U)(RU'U'R'U)(rR')12)(rR'2U'RU')(R'U2RU'R)r'11')f(RUR'U')2f'y'f(RUR'U')f'12')f(RUR'U')2f'yF(RUR'U')F'11'')F(RUR'U')F'yrUR'URU'U'r'12'')F(RUR'U')F'yF(RUR'U')F'(rU'r'U')(rUr')(F'UF)13')(rU'r'U')(rUr')y(L'UL)14)R'FRUR'F'R(FU'F')14')(l'UlU)(l'U'l)(FU'F')14'')(l'UlU)(l'U'l)y'(RU'R')15)(r'U'r)(R'U'RU)(r'Ur)16)(rUr')(RUR'U')(rU'r')17)F(UR'U'F')U(FR2UR'U'F')18)F(RUR'd)(R'U2)(R'FRF')19)(r'RU)(RUR'U'r)(R'2FRF')20)r'(RU)(RUR'U'r2)(R2'U)(RU')r'(RU'U')(R'U'RUR'U')(RU'R') 21')F(RUR'U')3F'RU'U'(R'2U')(R2U')R'2U2R 21')(RUR'URU2R')221'')(RUR'URU')(R'URU2R')22')RUR'URU2R')yRUR'URU2R')(R2D')(RU'U')