Amritha and I discovered SudokuX with Hema's help. We used to buy Deccan Herald on Sundays and never read the instructions in SudokuX. Once we left the paper by mistake in Hema's place and then told us that the diagonals should also be solved. Eureka and we became fans of SudokuX. We are so addicted that in Chennai I would copy the puzzle from Deccan Herald epaper at 5.30 AM and we would both solve the puzzle as soon as we returned from the temple and then only do other jobs.
Sudoku X builds on the rules of Sudoku.
The rules of Sudoku are fairly easy to understand. A standard Sudoku puzzle consists of a square 9 by 9 grid, with bold lines every third square in order to subdivide it into nine 3 by 3 boxes. Out of the 81 squares, some are already filled with the numbers 1 to 9 by the setter. The aim is to fill all the squares with the numbers 1 to 9 into the puzzle grid so that each number occurs once and once only in each row, column and in each of the 3 by 3 box. The level of difficulty of a Sudoku puzzle may be Easy, Medium or Hard. Though many factors decide the level of difficulty, as a thumbrule, if the setter has filled 25 to 27 squares it may be Hard, 27 to 30 may be Medium and more than 30 will be Easy.
For children 6x6 puzzles where 1 to 6 are placed in the grids are used.
Other variations use the 12x12 puzzles where 1 to 9 plus A, B and C into each region in the grid are placed. In 16x16 puzzles place 1 to 9 and A to G.
A Sudoku X puzzle adds to the standard rows, columns and boldlined boxes by also requiring that you place 1 to 9 into each of the two main diagonals, which are highlighted by a different colour or a line. Generally Sudoku  X setters fill only 19 to 23 squares.
Have fun and good luck in solving the Sudoku  X here.
FOR FILLING UP, POINT THE MOUSE AT THE APPROPRIATE GRID AND TYPE THE NUMBER

Click on Grid to see half the solution

