标准数独基础上，每个灰色区域中，所有奇数的和等于所有偶数的和。
Classic rules applied. In each grey zones, the sum of all the odd numbers, equals to the sum of all the even numbers.
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.
标准数独基础上，"大"字格填3456中的一个，"中"字格填2345中的一个，"小"字格填1234中的一个。
Classic rules applied. Additionally, 大 means one of 3 or 4 or 5 or 6, 中 means one of 2 or 3 or 4 or 5, 小 means one of 1 or 2 or 3 or 4.
标准数独基础上，每行、列、宫中都应该有一颗星（用0代替），并且星星之间不能彼此接触。
Classic rules applied. Additionally, each Row, Column or Box contains a star (use 0 to instead), and stars cannot be horizontally, vertically or diagonally adjacent.
标准数独基础上，数字从圆球开始沿着线条逐渐增大。
Classic rules applied. Additionally, numbers increasing from bulb on each thermometer.
标准数独基础上，提示表示这一方向的斜线上所有的重复数字（无先后顺序）。如果没有重复的数字，会用X进行表示。
Classic rules applied. Additionally, the clue shows all the repeated numbers on the slant in this direction (It won't show the order). If there's no numbers repeated, the clue will be shown as X.
标准数独基础上，每一条“拉链线”上，与中点距离相同的两格（例如每条线的两端），它们的和等于中点格的数字。此外，为了便于观察，每条线的中点都已经用圆圈进行了标记。
Classic rules applied. Additionally, pairs of digits that are an equal distance from the centre of each 'Zipper Line' (for example, the two ends on a line) , must sum to that digit in the centre of that line. For convenience the central digit of each line has been highlighted with a dot.
填入1~9，使得每一面、每一行列内数字都不重复（每一行列都有6个单元格）。任意相邻的两格，数字之差不是1。
Fill 1-9 into the grid, make each face contains 1-9, and no line contains repetition (each line has 6 cells). Cells share an edge cannot contain consecutive digits.
标准数独基础上，O、E、B、S分别表示这一方向上前两格是奇数、偶数、大数（5678）、小数（1234）。
Classic rules applied. Additionally, O/E/B/S shows the first two numbers on this direction is Odd/Even/Big(5678)/Small(1234) numbers.
标准数独基础上，每条线条上的数字之和等于圆圈里的数字。
Classic rules applied. Additionally, the sum of numbers on each line is the numbers in circle.
