Expert" level puzzles are solvable by using " Inclusion", " Exclusion" and " Pairs exclusive" methods. A hexadoku is a 16x16 sudoku puzzle instead of 9 x 9 squares. The solving techniques are identical to those of a classic sudoku. Choosing alphadoku puzzles: These puzzles have been produced and ranked in such a manner so that the higher the puzzle number of a specific level, the more difficult the solution is. When solving either the symmetrical or asymmetrical alphadokus, the difficulty is roughly equivalent between the corresponding puzzle numbers of the two types within a certain skill level. The symmetrical puzzles are slightly easier to solve. The fact that symmetrical puzzles are, in fact, symmetrical they already have an extra constraint and thus there are fewer empty squares. Please note that the degree of puzzle difficulty can vary from person to person. Difficulty is a subjective concept and each player solves puzzles different ways using different methods with which he or she feels at ease. To reduce the size of the grid on the screen and to facilitate entering values, the possibilities are represented here by the following hexadecimal digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F.

Hexadecimal is a system that uses 16 digits: The numbers from 0 to 9 and the letters from "A" to "F". There are two ways to play a Sudoku puzzle, you can just use the mouse/touchscreen, or you can use the mouse and keyboard.We recommend you try Google Chrome, for its speed and its various features are very welcome when it comes to solving puzzles of 256 squares. Refer to How to solve for further information regarding these three solution methods, identical to those used for Sudoku 9X9 puzzles. Symmetric and Asymmetric Alphadoku puzzles

We've created a GIANT grid of over 350 hand-crafted Sudoku puzzles to challenge players of all ages! Can you complete the whole grid, beat the Quests, and collect all of the Trophies? Alphadoku puzzles: These puzzles are a variation to standard Sudoku puzzles. They enable seasoned players to find additional difficulty. The alphadoku 25X 25 square puzzles also serve as practice for experienced competitors and the habitual fans of the original Sudoku 9X9 puzzle. Playing by skill levelIn the Sudoku community, a Sudoku 16×16 can be called many names including Sudoku 16×16 , Sudoku 16 , Super Sudoku, and Hexadoku or Hexadecimal Sudoku. So don’t be confused if you will find these kinds of names when searching Sudoku 16×16 online . The emergence of this kind of monster Sudoku made the game more challenging. Looking at both the Sudoku 16×16 and 9×9 Sudoku puzzles, we can notice they have pretty much identical game rules. Moreover, we can still find slight modifications between the two. So how do we really play this Sudoku puzzle variant? To enter a pencil mark, press control, shift, or alt on your keyboard at the same time as pressing a number key. We suggest using Google Chrome. Indeed its execution speed is very valuable in the display of the 625 cells of this type of grid and the online help. Guidelines The Sudoku 16*16 solver solves the hexadoku / hexasudoku /hexa- wordoku grid by following logical deductions (similar to a human) and displays the steps of its progress.

Hexadecimal is particularly used in computer science. Indeed the hexadecimal allows easy conversion into binary that uses only two digits: the "0" and the "1". Please select the HELP option from the Options menu (the gear icon in the top right corner of the game screen) if you require assistance. To enter a number, press that number on the keyboard. If there is already a number in that square, it will be overwritten.