标准数独基础上，每个区域内的多位数是平方数（从左到右，上到下观察）。
Classic rules applied. Additionally, the multi-digit numbers in colored zones should be square numbers with order (left→right, up→down).
填入1~6，使得每宫内及每行列（三种方向上）数字不重复。每一宫或行列可能没有包含所有的数字。
Write 1~6, make numbers no repeated in each Box or each Row (in three directions). Each Box or Row may not contain all of the numbers.
标准数独基础上，每条对角线上数字也不重复。
Classic rules applied. Additionally, numbers cannot repeat on each diagonal.
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，在每个涂色区域中，上方的多位数是下方的多位数的倍数。所有的多位数都是从左到右的顺序。Classic rules applied. Additionally, in each colored region, the multi-digit numbers above is the multiple of the multi-digit below. All the multi-digit number should be read from left to right.
标准数独基础上，箭头格为N，箭头指向N+1。
Classic rules applied. Additionally, number N in arrow cell, N+1 in the direction the arrow points.
标准数独基础上，相同颜色的格子里有相同的数字。
Classic rules applied. Additionally, same color owns same numbers.
标准数独基础上，提示表示了框内所有奇数的和。
Classic rules applied. Additionally, the clue is the sum of all the odd numbers in the cage.
标准数独基础上，柠檬中心的两个数字组成了一个从左到右、从上到下的两位数，它等于柠檬线条上所有数字的和。 Classic rules applied. Additionally, the two numbers in the center of the lemon forms a 2-digit number (from left to right, up to down), and it equals to the sum of all the numbers on the lemon lines.
标准数独基础上，线条上相邻两格数字之差不为1。
Classic rules applied. Additionally, numbers next on the line cannot be consecutive.
