规则Rules:
① 异形规则Rules of Variant Classic:
填入1~9,使得每行、列、宫内数字不重复。
Write1~9, make numbers no repeated in each Row/Column/Box.
② 黑白点规则Rules of Kropki:
黑点两侧数字为2倍关系,白点两侧数字之差为1。所有符合条件的地方都被点标记,1和2之间可能是任意一种标记。
A black dot means that one of the neighboring digits has the double value of the other digit. A white dot means that the difference of the neighboring digits is exactly one. If there is no dot between two cells none of the constraints is valid. Dots between 1 and 2 will be white or black.