标准数独基础上，涂色格子填入奇数。
Classic rules applied. Additionally, colored cells contain odd numbers.
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 around it are consecutive.
标准数独基础上，每个灰色区域中是一组连续的数字（可能是乱序）。
Classic rules applied. Additionally, in each grey regions, numbers a group of consecutive numbers (may out of order).
标准数独基础上，提示表示从该方向看过去的16个不同的4位数字排列的顺序，1最小16最大。
Classic rules applied. Additionally, the clue represent the order of 16 different 6-digit numbers, 1 is the smallest and 16 is the largest.
标准数独基础上，两个涂色区域中，相同的位置对应的数字一致。
Classic rules applied. Additionally, in the 2 colored zones, same position own same number.
填入1~7，使得每行、列、宫内数字不重复。宫可能是锯齿状的，并且每个宫内不一定包含所有类型的数字。Write 1~7 to make numbers no repeated in each Row, Column and Box. The Box may be irregular, and may not contain all kinds of the numbers.
标准数独基础上，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。
Classic rules applied. Additionally, 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.
标准数独基础上，任意两个呈马步的单元格中，不能有相同的数字。
Classic rules applied. Additionally, no two cells that is a knight-step away can contain the same digit.
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（*本题由左右两道独立的谜题构成）。Write 1~9 to make numbers no repeated in each Row, Column, Box, and each group of cells linked by the curve. * This puzzle is formed by 2 seperated puzzles.
标准数独基础上，提示表示其周围四格内的四个数字。
Classic rules applied. Additionally, the clue shows the four numbers around it.
