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，提示表示其周围最大数字与最小数字的差。
Classic rules applied. Additionally, the clue means the difference of the max and min numbers around it.
标准数独基础上，提示符号V表示其相邻两格之和为5，或者其上方的数字大于下方的数字。
Classic rules applied. Additionally, clue V means the numbers around it have a sum of 5, or the numbers above it is larger than the number below it.
标准数独基础上，提示表示这一方向上，此数字之前有更大的数字。
Classic rules applied. Additionally, clue indicate an larger number exists before it.
标准数独基础上，每一个灰色区域的数字之和都是相同的。
Classic rules applied. Additionally, the sum of each grey zone is same.
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，涂色格子填入奇数。
Classic rules applied. Additionally, colored cells contain odd numbers.
标准数独基础上，提示表示其周围数字的和，相同字母代表相同的数码，不同字母代表不同的数码。
Classic rules applied. Additionally, the clue shows the sum of numbers around it. Same letter shows same digit, different letters show different digits.
填入1~5，使得每行、列内，及每个不足5格的宫内数字不重复。至少有5格的宫里宫一定包含了所有类型的数字。Write 1~5, make numbers no repeated in each Row, Column or Box with no more than 5 cells. Box with at least 5 cells should contain all kinds of numbers.
标准数独基础上，每个涂色区域内，上方数字的乘积等于下方的多位数。
Classic rules applied. Additionally, in each colored zone, numbers above products to multi-digit numbers below.
