You cannot safely place the numbers 2 and 3 in the 3x3 grid so skip them then write the orange 7 in 1C2R followed by green 9 in 1C1R with the same reasoning as red 1- that you can safely place them in that box since you cannot place them in other box of the 3x3 grid. For example, in the top-right 3x3 box in the puzzle below, place the Red 1 in the box in the second column and first row (can be shorten into 2C1R) since 1 cannot be placed other boxes in the grid. Like the header implies, instead of using imaginary lines that covers the whole Sudoku puzzle, focus on 1 3x3 box at a time and fill in the numbers. This is another way of solving the puzzle. Notice that in each respective 3x3 box, the box where the red circle lies is the only box where we can safely place the number 1. In the example below it is denoted by the red circles. Then I look for boxes where I can safely place the number 1. I first choose a number ( say 1) then I would make imaginary lines in my head like the one in the example below wherein the lines crosses out rows and columns where we can no longer place the number 1. This is actually one of the two ways I start solving puzzles. Some terms used in this article are row (horizontal set of boxes), column (vertical set of boxes) and candidates (numbers that can be correctly placed in that box) It also helps you understand Sudoku techniques and be able to talk Sudoku with your peers. Knowing what terms mean would not only help you understand the rules but would also help you solve Sudoku puzzles. Knowing the rules is important but it is not enough. With Irregular Sudoku, instead of making sure that the 3x3 boxes contains the numbers from 1 to 9, you need to make sure that the irregular boundaries(bounded by darker lines) contain the numbers 1 to 9 instead. For example, with diagonal Sudoku, you also need to make sure that the main diagonals contain the numbers 1 to 9. Sudoku variants have more or less the same rules as classical Sudoku but with additional or different rules. For Classical Sudoku – the most popular and simplest variant- each grid should be filled up such that in each row, column and 3x3 sub grid, the numbers from 1 to 9 appear exactly once.
Knowing the rules is like a path in order to reach your destination. Here are 10 tips and tricks in order to solve Sudoku puzzles:
#SUDOKU WITH SOLUTION HOW TO#
The rules are straightforward but most of the time you would see yourself staring at the puzzle and wondering how to even start solving the puzzle. Sudoku is a popular number placing puzzle wherein you are given a 9x9 grid and your goal is to fill up each grid such that each row, column and 3x3 sub grid contains the numbers from 1 to 9. Here are 10 tips he suggests on how to win at Sudoku: He is currently taking up BS Applied Mathematics majoring in Mathematical Finance. Alvin Ian Chan, 19, was named the Philippines’ new Sudoku grandmaster at the 8th Philippine Super Sudoku Challenge (PSSC).