两种反棱的效果

Cm_Hu

四阶o特的公式有好几类，按照sswiki列出来的有
2 Impure Dedge Flips (OLL Parity)(Turn the inner and outer layers simultaneously)
    2.1 OLL Parity
    2.2 OLL Parity + PLL Parity (Double Parity)
3 Impure Dedge Flips with Wide Turns/Pure Flips with Inner Layer Turns (SiGN Notation)
    3.1 OLL Parity
    3.2 OLL Parity + PLL Parity (Double Parity)(SiGN Notation)
4 Pure Flips (WCA Notation)
    4.1 OLL Parity: One Dedge Flip
    4.2 One Dedge Flip + PLL Parity (Double Parity)
    4.3 One Dedge Flip + Adjacent PLL Parity (Adjacent Double Parity)
    4.4 3 Flips


每个的公式见http://www.speedsolving.com/wiki/index.php/4x4x4_Parity_Algorithms