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，不等号展示了相邻两格的大小关系。
Classic rules applied. Additionally, ＞ and ＜ shows the larger number around it.
标准数独基础上，提示是其周围数字的积。
Classic rules applied. Additionally, numbers in circle is the product of the numbers around it.
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，挡板表示相邻两格连续，没有挡板的地方，相邻两格不连续。
Classic rules applied. Additionally, the 2 numbers adjacent to a bar should be consecutive,and 2 adjacent numbers with no bar cannot be consecutive.
标准数独基础上，每个涂色区域内都是1~9不重复。
Classic rules applied. Additionally, numbers cannot repeat in each colored zones.
标准数独基础上，灰色数字有且仅有一个是错误的。
Classic rules applied. Additionally, there's only one false number in grey numbers.
标准数独基础上，提示表示其周围最大的数字。
Classic rules applied. Additionally, circle shows the max number around it.
标准数独基础上，两个涂色区域内，相同的位置数字之差为1。
Classic rules applied. Additionally, in 2 colored zones, same position own a pair of consecutive numbers.
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 on each line have same parity.
