标准数独基础上，挡板两侧数字连续，相邻两格之间如果没有挡板，则这两格一定不连续。
Classic rules applied. Additionally, the 2 numbers adjacent to the bar is consecutive, 2 adjacent cells with no bar cannot be consecutive.
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，提示表示其所在区域内两个多位数的比值（小数➗大数）。多位数的阅读方式是从左到右。
Classic rules applied. Additionally, the clue is the ratio of the multi-digit numbers adjacent to it in that colored region (the smaller one divided by the larger one). The multi-digit number should be read from left to right.
标准数独基础上，线条上的数字，其大小位于线两端圆圈内数字大小之间。
Classic rules applied. Additionally, the number on the line is between the size of the number inside the circle at both ends of the line.
标准数独基础上，沿着线条向上时，数字会逐渐增大；沿着线条向下时，数字会逐渐减小。
Classic rules applied. Additionally, if you move up along the line, the number will gradually increase; if you move down along the line, the number will gradually decreases.
标准数独基础上，黑点两侧数字为2倍关系，白点两侧数字之差为1。所有符合条件的地方都被点标记，1和2之间可能是任意一种标记。
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，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，奇数和偶数在每条线条上交替出现。
Classic rules applied. Additionally, odd numbers and even numbers alternate on each line.
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.
