标准数独基础上，涂色格子填入奇数。
Classic rules applied. Additionally, colored cells contain odd numbers.
锯齿数独基础上，第X行/列中相邻的两个数字，若其和为X则标黑点，其差为X则标白点。所有的点都已经给出。
Irregular rules applied. Additionally, in Row or Column X, two adjacent cells sum to X are marked with a black dot, two adjacent cells with difference X are marked with a white dot. All the dots are given.
标准数独基础上，某个方向上第一个数字是X，提示表示前X格里的某个数字。
Classic rules applied. Additionally, when X is the first number in this direction, the clue shows one of the numbers in the first X cells.
填入1~9，使得每行、列，及每个彩色线框内内数字不重复。
Write 1~9, make numbers no repeated in each Row, Column, Box, and colored cages.
标准数独基础上，每个区域内都是从左到右、从上到下的两位数，提示表示这些两位数四舍五入后的结果。
Classic rules applied. Additionally, clues in each cage indicate the result of rounding that multi-digit number (from left to right, up to down) to the nearest ten.
从1~9中选择四种数字填入，使得每行、列、宫内数字不重复。此外，每个涂色区域内数字不重复，角标是区域内数字之和。
标准数独基础上，提示表示其周围四格内的部分数字。
Classic rules applied. Additionally, the clue shows some of the numbers around it.
标准数独基础上，提示数是这一方向上前若干个数字之和。X是这一方向上第一个数字。
Classic rules applied. Additionally, the clue is the first X numbers' sum, with X is the first number in this direction.
标准数独基础上，如果某行/列的第一格是X，则该行/列的第X格是外提示里的数字。
Classic rules applied. Additionally, if the first cell is X in a Row or Column, the Xth cell is the outside clue.
标准数独基础上，从一个涂色格到另一个涂色格之间，一定有一条仅通过正交相邻的单元格组成的路径，并且路径上的单元格全部是奇数。
Classic rules applied. Additionally, there must be at least one path from one colored cell to another colored cell which passes orthogoanlly through only odd digits.
