标准数独基础上，每一条线条上的数字都有着相同的奇偶性。
Classic rules applied. Additionally, numbers in each zone have same parity.
标准数独基础上，涂色格数字大于相邻的白色格内的数字。
Classic rules applied. Additionally, numbers in colored cells are larger than numbers in white cells adjacent to it.
标准数独基础上，白点两侧数字之差为1。
Classic rules applied. Additionally, the white dot means the adjacent two cells are consecutive.
填入1~9，使得每行、列、宫内数字不重复，宫可能是不规则的，并且有一个宫分散成了若干个涂色格。
Write 1~9 to make numbers no repeated in each Row, Column and Box. The Box may be irregular, and one of them is seperated as the colored cells.
标准数独基础上，线条上相邻两格数字连续。
Classic rules applied. Additionally, numbers next on line are consecutive.
标准数独基础上，每个虚线框内数字不重复，角标是框内数字之和。
Classic rules applied. Additionally, numbers cannot repeat in each cage, clue is the sum of the numbers.
标准数独基础上，将任意格A的任意相邻格记为Ai。若对于所有的i，有A=Σ|A-Ai|，则将A格涂色，全标。
Classic rules applied. To any A in the grid, we set the cells adjacent to A is Ai. If A=Σ|A-Ai| in this cell, we colored it. All the possible A are marked.
填入1~6，使得每行、列、宫内数字不重复，宫可能是不规则的。白色格内不填入数字。
Write 1~6, make numbers no repeated in each Row, Column and Boxes. The Box may be irregular, and you don't need to fill the white cells.
标准数独基础上，提示是其周围数字的和。
Classic rules applied. Additionally, numbers in circle is the sum of the numbers around it.
填入1~9，使得每行、列、宫内，以及每一组由灰色线条连结的格子里的数字不重复。
Write 1~9 to make numbers no repeated in each Row, Column, Box, and each group of cells linked by the curve.
