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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT color=#000000></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">一、中心块合并</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">能用</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">MR U MR’</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">合并时就用,不能用</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">MR U MR’</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">合并时,则用下面的方法:</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> 将合并的面向上置于</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">U</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面,在</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">F</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面找到准备合并的目标块,设该块的坐标在</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">F</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面上为(</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">X</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">,</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">Y</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">),先将该块所在的</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">MR</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层转上去,使之到达目标位置,然后,根据实际情况,转动</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">U</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">90</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">度,可以顺,也可能是逆,要依其坐标而定,如果是顺转,则再将</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">F</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面上从右数第</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">Y</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">MR</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">层转上去(如果是逆转则从左数),然后将</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">U</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面返回,并将第一次转上去的那一层也返回,最后再将</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">U</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面转动</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">90</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">度(方向又是退上一步的),并将第二次转上去的那一层返回。</SPAN></FONT><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT color=#000000>说的有些复杂,做起来并不复杂。</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT color=#000000><SPAN lang=EN-US><SPAN style="mso-spacerun: yes"><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">到了最后一面的还原,是最为艰难的了。我经过做了无数次复原发现,好象有点规律可循。首先是分清先后顺序,可以先从最中心的开始,也可以从外边开始。我通常是从中心开始,一圈一圈向外来做。</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、对于偶数阶的魔方,中心的四块一般有这么几种情况,一种是四块没有相同的方向,一种是有两块方向相同,还有就是对角两块方向相同且互相方向相反,还有的我也不知道了。那么对于第一种情况,可以随便选其中一块的方向,作为目标方向,然后用三轮换公式,换出另两块,再换第三块时,不再转动</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">U</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面,换</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">N</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">次就可以换到目标方向,再转动</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">U</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">面换回那两块,应该就能使中心四块方向一致。对于第二种情况,可以用三轮换公式将之变成第三种情况或是第一种情况,再复原。对于第三种情况,先是换掉对角的两块,然后再去换另两块,最后再换开始换下的两块即可。</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT color=#000000>中心四块调整好以后,再调整外边一圈的四个角,方法同上。</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><FONT color=#000000>四角调好后,四个边的调整仍用三轮换的公式,只是一般很难一次性调整到与中心四块方向一致,要分两步走,第一步先将四边每一边的两块先调整到一个方向上,第二步再将它们作为整体进行三轮换,调整到和中心中块方向一致。<SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">需要注意的是,有时会出现有一对“边”方向一致,但与另一对“边”和四角的方向相反,则要留下来,等合并完棱块时,会有相应的一条棱出现需要原地翻色的情况,到时在翻色时就会使这一情况复原。也可以用(TRU2)5调整,避免最后出现棱翻色的状况。</SPAN></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">再向外扩展</SPAN><SPAN lang=EN-US><FONT face="Times New Roman">N</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">圈,方法也是一样。</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><FONT color=#000000><SPAN lang=EN-US><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、对于奇数阶的魔方,大致与偶数阶的一样,只是到了第二圈及以上时,要先调整边的中间那四块的方向。</SPAN></FONT></P>
[ 本帖最后由 北方闲人 于 2008-7-29 10:41 编辑 ] |
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