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Sudoku 4x4 Solver

Tool/Solver to solve Mini Sudokus (4x4). Sudoku 4x4 is a simplified version of Sudoku with only 16 boxes, usually for children, hence its other name: Sudokids.

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Sudoku 4x4 Solver -

Tag(s) : Number Games

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Sudoku 4x4 Solver

Solve a 4x4 Sudokids grid


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Answers to Questions (FAQ)

What is a 4x4 Sudoku? (Definition)

4x4 Sudoku is a simplified version of classic Sudoku (9x9) consisting of 16 squares divided into a grid of 4 rows and 4 columns.

The numbers used are generally 1, 2, 3, and 4, and the grid is divided into four 2x2 square regions.

The goal is to fill the grid according to the rules of Sudoku: each row, each column, and each region must contain each number exactly once.

4x4 Sudoku (sometimes called Sudokids) is often used to introduce children to logic and mathematical reasoning. It develops thinking and deduction skills without being overly complex.

How to solve a Sudoku 4x4?

To solve a 4x4 Sudoku, follow these steps:

— Identify pre-filled squares: Look for numbers that have already been placed (especially those that appear multiple times; they allow for more deductions than others).

— Apply the basic rules: each row, column, and region must contain the numbers 1 to 4 without repetition.

— Use the exclusion technique: If a number is already present in a row, column, or region, exclude it from the possibilities of the squares in that area.

— Fill unique squares: When a square has only one possibility, complete it with the corresponding number.

Example:

1__4
3__2
_14_
_3_1
1234
3412
2143
4321

Sometimes, 4x4 Sudoku puzzles don't consist of numbers, but four symbols, shapes or colors instead. dCode accepts numbers or letters, and can transcribe the symbols if necessary.

Sometimes 4x4 sudoku puzzles don't use blocks/regions, but there may be some that do, and they may have irregular shapes (and not necessarily 2x2). dCode allows you to define region boundaries if needed.

How to solve a Sudoku 4x4 step by step?

The dCode step-wise resolution solves the 4x4 sudoku according to a deductive method, as a human will do, at each step the digit found is indicated as well as the explanation.

dCode's 4x4 Sudoku solver analyzes the given grid and applies solving algorithms to find the correct solution(s).

Source code

dCode retains ownership of the "Sudoku 4x4 Solver" source code. Any algorithm for the "Sudoku 4x4 Solver" algorithm, applet or snippet or script (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or any "Sudoku 4x4 Solver" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) or any database download or API access for "Sudoku 4x4 Solver" or any other element are not public (except explicit open source licence like Creative Commons). Same with the download for offline use on PC, mobile, tablet, iPhone or Android app.
Reminder: dCode is an educational and teaching resource, accessible online for free and for everyone.

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