===Problems=== The most frequent problem players come across are [[Overcoming_Obstacles#Mergers | mergers]]. These are partial branches that the AI has erroneously added which do not belong to the piece being traced. When a player comes across a merger there are two options. If the merger is small and does not exit the cube, the player may ignore it and trace as normal. If the merger is large or exits out any side of the cube, the player should remove the segment that attaches to the merger and continue to trace the good part of the branch to completion.
玩家最常遇到的问题是 杂合体，杂合体是因为人工智能（AI）错误地把其它添加到正在追踪的分支。有两种方式处理：如果杂合体比较小或者没有延伸到方块外，玩家可以忽略；如果杂合体较大或者已经延伸到方块的任意一面，玩家需要除去错误的片段，沿着正确的部分完成那个分支。
