Tool/Solver to resolve Sudoku16x16. Hexadoku is a variant of classical Sudoku, also called giant sudoku, of size 16 by 16, with inner squares of 4x4. It can be filled with letters of hexadecimal characters.
Hexadoku (Sudoku 16x16) Solver - dCode
Tag(s) : Number Games
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Hexadoku (Sudoku 16x16) Solver
Solve a Hexadoku grid
Answers to Questions (FAQ)
What is Hexadoku? (Definition)
Hexadoku (or 16x16 Sudoku) is an advanced variation of the famous logic game Sudoku. It is played on a 16x16 grid, divided into 16 4x4 regions. The objective is to fill all the boxes with numbers or letters so that each row, each column, each region (sub-grid of 4x4 boxes) contains them all without repetition.
How to fill the Hexadoku 16x16 grid?
There are 3 main types of notation for the 16 characters inside the hexasudoku grids.
— 1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G: the usual sudoku numbers (from 1 to 9) followed by the first letters of the alphabet.
— 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F: hexadecimal digits (base 16)
— A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P: the first 16 letters of the alphabet (variant letters can be used to guess words)
dCode allows all alphanumeric characters, both the letters A-Z and the numbers 0-9. On the other hand, the numbers 10,11,12,13,14,15,16 are prohibited, replace them with letters if necessary.
It is possible to copy and paste and/or directly type the values in the boxes (space for empty).
Example: Copy the content in the first cell 89 4 3 1 DA2 6 DA B E 5C 8 1CF 5 EB 6 4 32 AC 9 4 1 A 4 6 E7 8 E 6 5 7 0F4 6 7C 9 D87 E 6 5A 2 08 5 E F 45 2FA 8369 D A3720 F A D5 C 4 1D04 AF C E8 B C1 to get:
| 8 | 9 | ␣ | 4 | ␣ | 3 | ␣ | 1 | ␣ | D | A | 2 | ␣ | 6 | ␣ | ␣ |
| ␣ | ␣ | ␣ | D | A | ␣ | ␣ | B | ␣ | E | ␣ | 5 | C | ␣ | ␣ | 8 |
| ␣ | ␣ | 1 | C | F | ␣ | 5 | ␣ | ␣ | ␣ | ␣ | ␣ | E | B | ␣ | ␣ |
| 6 | ␣ | ␣ | ␣ | ␣ | ␣ | 4 | ␣ | ␣ | ␣ | ␣ | ␣ | 3 | 2 | ␣ | A |
| C | ␣ | ␣ | ␣ | ␣ | 9 | ␣ | ␣ | ␣ | 4 | ␣ | 1 | ␣ | ␣ | A | ␣ |
| ␣ | 4 | ␣ | ␣ | ␣ | ␣ | 6 | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | E |
| 7 | ␣ | 8 | ␣ | ␣ | ␣ | ␣ | ␣ | E | ␣ | ␣ | ␣ | 6 | ␣ | ␣ | 5 |
| ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | 7 | ␣ | 0 | F | 4 | ␣ |
| ␣ | ␣ | ␣ | 6 | ␣ | ␣ | ␣ | ␣ | 7 | C | ␣ | ␣ | ␣ | 9 | ␣ | ␣ |
| D | 8 | 7 | ␣ | ␣ | E | ␣ | 6 | ␣ | ␣ | 5 | A | ␣ | ␣ | ␣ | ␣ |
| ␣ | ␣ | 2 | ␣ | 0 | 8 | ␣ | 5 | ␣ | ␣ | E | ␣ | F | ␣ | ␣ | ␣ |
| 4 | 5 | ␣ | ␣ | 2 | F | A | ␣ | 8 | 3 | 6 | 9 | ␣ | ␣ | D | ␣ |
| ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ | A | 3 | 7 | 2 | 0 | ␣ | ␣ | ␣ | F |
| ␣ | ␣ | A | ␣ | D | 5 | ␣ | C | ␣ | ␣ | ␣ | ␣ | 4 | ␣ | ␣ | ␣ |
| ␣ | 1 | D | 0 | 4 | ␣ | ␣ | ␣ | ␣ | A | F | ␣ | ␣ | ␣ | C | ␣ |
| ␣ | ␣ | ␣ | E | 8 | ␣ | B | ␣ | C | 1 | ␣ | ␣ | ␣ | ␣ | ␣ | ␣ |
How does the step by step works?
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.
The explanations are detailed and deducted for the content of rows, columns or blocks.
Sometimes no immediate logical solution can be found for a cell, the solver tries a value in the cell and continues until an inconsistency happens. If the solver find a problem it comes back to previous steps (these steps are not displayed). If there are none, then the solution is shown, there may be many possible solutions.
Source code
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Cite as source (bibliography):
Hexadoku (Sudoku 16x16) Solver on dCode.fr [online website], retrieved on 2024-12-30,
