![]() These are just a few examples of the many variations of sudoku that are available. Greater than sudoku, also called Futoshiki: Greater than sudoku puzzles are traditional sudoku puzzles with the added constraint that the numbers in each cell must be greater than the numbers in the cells directly adjacent to it (horizontally, vertically, or diagonally).Sudoku-X: Sudoku-X puzzles are traditional sudoku puzzles with an added twist: the diagonals must also contain the numbers 1-9.Solvers must fill in the grid so that each row, column, and 3x3 box contains the numbers 1-9, but they must also follow the "cage" clues, which specify the sum of the numbers within a group of cells. Killer sudoku: Killer sudoku puzzles are a combination of sudoku and kakuro.Solvers must fill in the grid so that each row, column, and jigsaw piece contains the numbers 1-9. Jigsaw sudoku: Jigsaw sudoku puzzles are similar to traditional sudoku, but the grid is divided into irregularly shaped "jigsaw" pieces.Solvers must fill in all the grids so that each row, column, and 3x3 box contains the numbers 1-9. Samurai sudoku: Samurai sudoku puzzles consist of five overlapping sudoku grids, with a total of 21 sub-grids.These puzzles are great for beginners or for those who want a quick mental break. Mini sudoku: Mini sudoku puzzles are smaller than traditional sudoku puzzles, with a grid size of 4x4, 6圆, or 8x8.Just keep trying different techniques and you will eventually find the solution! Don't get frustrated if it takes you a while to solve the puzzle. Remember, sudoku is a game of logic and patience. Using "crosshatching" (eliminating possibilities by examining the intersections of rows and columns).Looking for "hidden pairs" (two numbers that can only go in two specific cells in the same row, column, or box).Looking for "naked pairs" (two cells in the same row, column, or box that contain only the same two numbers as possibilities).If you get stuck, try using the following techniques:.Repeat steps 1-3 until the puzzle is solved, or until you reach a point where you cannot make any more progress using these methods.If a cell can only contain one number, and that number must go in that cell, then all other cells in the same row, column, and box can be eliminated as possibilities for that number. If there is only one cell in a row, column, or box that can hold a specific number, then that cell must contain that number. Look for rows, columns, and 3x3 boxes that contain only one possible cell for a particular number.If a cell can only be filled with one number, then it must be that number. ![]()
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