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，提示表示该格与其某一个相邻单元格的和。
Classic rules applied. Additionally,the clue indicates the sum of the digit in the cell, and one of the number adjacent to it.
标准数独基础上，如果涂色格是X，涂色格右侧的单元格是Y，则涂色格的下一行之中，数字X在第Y格。
Classic rules applied. Additionally, if A is in colored cell, B is on the right side of A, then in the next Row, A is in the Bth cell.
标准数独基础上，圆圈格子填奇数，方块格子填偶数。
Classic rules applied. Additionally, circle cells contain odd numbers, square cells contain even numbers.
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，每条箭头上的数字之和，等于圆圈里的一位或两位两位数。两位数的阅读方式是从左到右、从上到下。 Classic rules applied. Additionally, the sum of numbers on each line equals to the numbers, or the 2-digit numbers in circle. The 2-digit number should be read from left to right, up to down.
标准数独基础上，如果圆圈格内是A，那么由圆圈格引发的每一条箭头线条上，都有A个数字与圆圈格内数字奇偶性一致。 Classic rules applied. Additionally, if the circle cell is A, then on each arrow line from the circle, there're A numbers have same parity with A.
标准数独基础上，如果箭头格内是N，则箭头方向上第N格是6。
Classic 6x6 rules applied, additionally, arrow cells with number N, must point to 6, with 6 on the Nth cell on it's direction.
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.
填入1~3，使得每行、列、宫内都是两组1~3不重复。外提示是这一方向上的摩天楼数。
Write1~3, make each Row/Column/Box contain 2 groups 1~3. The outside clue is the skyscraper number on this direction.
