![]() ![]() We noticed that there are boxes that number 2 is the only choice to be placed in. Then we fill boxes in which we cannot place a number 2 with a color by following rules. So box–(2,3) is the only box that we can place a number 1 in.Īs the same way, in the bottom left region, box–(3,2) is the only box that we can place a number 1 in. But, by rule 1, we cannot place a number 1 in box–(1,3) and box–(1,4). Because, by rule 3, we have to place a number 1 exactly once in the top right region. This time, we notice that there is a box (surrounded by yellow lines) that number 1 is the only choice to be placed in. We fill boxes in which we cannot place a number 1 with a color by following rules. First, we focus on a number 1 of box–(1,1). Process 1Ī basic technique to solve Sudoku 4×4 is to find boxes in which a specific number should be placed. Here, we demonstrate a solving process of the example puzzle. Then we cannot place another number 1 in box–(1,2), box–(2,1) and box–(2,2). This means that we cannot place same numbers in a region. So we cannot place another number 1 in box–(2,1), box–(3,1) and box–(4,1).Įach region surrounded by thick lines contains each digit of 1–4 exactly once. In the example, a number 1 is placed in box–(1,1). This means that we cannot place same numbers in a column. So we cannot place another number 1 in box–(1,2), box–(1,3) and box–(1,4).Įach column contains each digit of 1–4 exactly once. This means that we cannot place same numbers in a row. Now we explain each rule in detail by using the example puzzle following.Įach row contains each digit of 1–4 exactly once. Each region surrounded by thick lines contains each digit of 1–4 exactly once.Each column contains each digit of 1–4 exactly once.Each row contains each digit of 1–4 exactly once. ![]() For example, we call the colored box in the following image box–(2,3). We describe a position of a box as (1,1) using a row and a column number. In explanations, we call a horizontal sequence of boxes row and a vertical sequence of boxes column. Then we demonstrate the solving process of an example puzzle. Here we explain the rule of Sudoku 4×4 in detail for those who plays it for the first time. Sudoku 4×4 is a puzzle game which we have to determine the place of numbers by using given hints under some rules. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |