Subgrid to Grid: Solve numbers in a subgrid and use that information to solve for numbers in the larger grid. Objective: The goal is to fill the empty cells in such a way that each row, column, and region contains the numbers 1 through 16 without any repetition.

Look for Grid Symmetry: Often, the placement of numbers will be symmetric, which can provide clues for placing additional numbers.

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Sudoku 16x16 is a variant of the classic Sudoku puzzle, but, as the name implies, it is played on a larger grid of 16x16 squares. Some of the squares already contain numbers, and the objective is to fill in the remaining squares. To enter a number, press that number on the keyboard. If there is already a number in that square, it will be overwritten.

To solve the puzzle you must make sure that every column, row and 3x3 box contains the numbers 1 through to 9. Elimination: Determine what numbers cannot be in a square and eliminate them as possibilities, making it easier to see what can be placed there. Instead of using only the digits 1 to 9, the hexadoku sudoku uses the 16 digits of the hexadecimal base:Unique Numbers: Every number from 1 to 16 must appear exactly once in each row, column, and 4x4 region. The hexadecimal system is a numeral system with a base of 16, using Arabic numerals to represent the first ten numbers (0-9) and the letters A-F for the other six digits. The hexadecimal system is useful in computer science because it is easier to map the hexadecimal system to the binary than the decimal system. Tips for use Puzzles " Expert" are solvable by " Inclusion", " Exclusion, " Pairs exclusive" and " Multiple choice". These puzzles do not require more than one hypothesis by multiple choice.