Easy Sudoku 简易数独

This puzzle has again been wrongly classified as EASY. In actual fact, this puzzle should be rated between MEDIUM to HARD.

这个谜题再次被错误地归类为“简单”。事实上，这个谜题的等级应该在中等到困难之间。

Let us deal with the solution using the Francis’ Rules for Sudoku as given above. The solution and the logic can be read from the tabulation below:

让我们使用上面给出的弗朗西斯数独规则来处理解决方案。解决方案和逻辑可以从下表中读取：

To read the steps in the above tabulation, there are six columns - column 1 shows the step number; column 2 shows the Francis’ Rule Number; column 3 shows the box, or the row, or the column where the answer to a particular cell comes from, column 4 shows the logic involved, column 5 shows the cell reference # and the last column 6 is the answer for that particular step.

要阅读上表中的步骤，有六列 - 第 1 列显示步骤编号；第 2 列显示弗朗西斯规则编号；第 3 列显示特定单元格的答案来自的框、行或列，第 4 列显示所涉及的逻辑，第 5 列显示单元格参考编号，最后第 6 列是该特定步骤的答案。

Francis’ Rule # 1: Look at the horizontal rows, three rows at a time, and spot the answer to a particular cell where two other similar digits are found. Francis’ Rule # 2: Do the same but this time look at the vertical columns instead. Francis Rule # 3: Look at the possible answers to any one particular cell and see if there is a unique digit for that cell.

弗朗西斯的规则＃1：查看水平行，一次三行，并找出找到其他两个相似数字的特定单元格的答案。弗朗西斯的规则#2：做同样的事情，但这次看垂直列。弗朗西斯规则＃3：查看任何一个特定单元格的可能答案，看看该单元格是否有唯一的数字。

Francis’ Rules # 4, # 5, and # 6 are called the Remaining cells and Remaining digits, where there are three or less remaining to be solved in a Box (Rule # 4); or in a Row (Rule # 5) or in a Column (Rule # 6).

Francis 的规则#4、#5 和#6 被称为剩余单元格和剩余数字，其中有三个或更少的剩余要在一个盒子中解决（规则#4）；或在行中（规则#5）或在列中（规则#6）。

Francis’ Rules # 7, # 8, and # 9 are called the Pairing Rules. If there are two digits in a Box (Rule # 7) with the same two possible digits, we can use this pair to get answers to the other cells inside this Box. Similarly we can do this pairing for cells inside a Row (Rule # 8) or inside a Column (Rule # 9).

Francis 的规则#7、#8 和#9 被称为配对规则。如果一个盒子中有两个数字（规则＃7）具有相同的两个可能数字，我们可以使用这对来获取该盒子内其他单元格的答案。类似地，我们可以对行内的单元格（规则#8）或列内的单元格（规则#9）进行这种配对。

Francis’ Rules # 10; # 11; and # 12 are for those cells within a Box (Rule # 10), or a Row (Rule # 11), or a Column (Rule # 12), where only one digit fits a particular cell.

弗朗西斯规则#10； #11;和 #12 用于框（规则 #10）、行（规则 #11）或列（规则 #12）中的那些单元格，其中只有一位数字适合特定单元格。

Francis’ Rules # 13; # 14; and # 15 concern those circumstances where there are three cells within a Box (# 13) or a Row (# 14) or a Column (# 15) with the same possible three digits. Using this fact, we may have answers to the digits for the remaining cells in a Box (# 13) or a Row (# 14) or a Column (# 15).

弗朗西斯规则#13； #14;和#15 涉及框（#13）或行（#14）或列（#15）中的三个单元格具有相同可能的三个数字的情况。使用这个事实，我们可能会得到框（#13）或行（#14）或列（#15）中剩余单元格的数字的答案。