LinkedIn Mini Sudoku #109 (Fall Down) – Step-by-Step Solution Guide

LinkedIn Mini Sudoku #109, also known as Fall Down, is a 6x6 puzzle where each row, column, and 2x3 section must contain the digits 1 through 6 exactly once. This edition, published on November 28, 2025, presents a moderate challenge with a few given clues guiding the path to the solution.

Let's walk through the process used to fill the empty cells from the starting clues. The main strategy revolves around respecting the rules of the 6x6 sudoku, focusing on logical elimination and deduction within rows, columns, and blocks.

Step 1: Analyze Given Clues and Identify Easy Fills

Start by scanning the rows and columns for cells where only one number is missing. For instance, in the first row, the digit 1 is given, meaning numbers 2 through 6 remain to be placed. Look across the row, column, and box to find exclusivity.

Similarly, assess the 2x3 boxes. Some blocks have multiple clues that reduce placement options sharply. Focus initially on rows, columns, or boxes with the most given numbers to anchor your deductions.

Step 2: Use Exclusion and Single Possibility

For each blank cell, write down or mentally note possible candidates by cross-referencing digits already present in the same row, column, or box. When only one candidate remains for a cell, place it confidently. This step-by-step refinement will progressively reveal more filled cells.

Example: In the second row, with given numbers 6 and 4 positioned, cross out these digits for the empty cells in that row and their intersecting columns and boxes to identify the suitable candidates.

Step 3: Narrow Down Using Column and Box Interactions

Evaluate vertical columns that already have several digits locked in. Identify which numbers remain missing and look because each 2x3 box must also include all digits 1 to 6. This often uncovers unique placements.

For example, the fourth row has a '3' and a '5'; by checking columns and boxes, determine where digits like 1, 2, 4, and 6 must be placed.

Step 4: Leverage Naked Singles and Hidden Singles

Sometimes a number can only fit in one possible cell within a row, column, or box (naked single), or a digit may appear as a unique candidate among candidates in a unit (hidden single). Identifying these simplifies the puzzle considerably and unlocks several cells.

Step 5: Iterate the Logical Checks

As more cells fill in, revisit rows, columns, and boxes to update candidate lists. Earlier deductions often change possibilities, enabling further progress through straightforward logic rather than guesswork.

This interconnected reasoning continues until the entire grid is complete, respecting the Sudoku rules at every stage.

This logical, arithmetic-based approach ensures no number repeats within any row, column, or the 2x3 sections, smoothly guiding you from the initial clues to the fully solved puzzle.

Enjoy practicing the LinkedIn Mini Sudoku #109 (Fall Down) with these techniques to improve your solving skills in 6x6 Sudoku. The key is patient elimination and attentive candidate tracking. Give it a try and enhance your puzzle-solving acumen!