LinkedIn Mini Sudoku #93 (Triominoes) – Step-by-Step Solution Guide – November 12, 2025

Welcome to our detailed solving guide for LinkedIn Mini Sudoku #93, also known as the Triominoes puzzle published on November 12, 2025.
This 6x6 Sudoku variant requires filling each row, column, and 2x3 block with digits 1 through 6 without repetition. Unlike standard Sudoku, the smaller grid size and 2x3 boxes bring unique opportunities for deduction and pattern recognition.

Let’s break down the approach to solving this specific puzzle, starting from the provided clues and reasoning through each empty cell to reach the solution logically.

Initial Setup and Clue Analysis

The puzzle begins with some cells prefilled, such as 2 and 3 in the top-right area, and key numbers like 2 and 3 appearing in certain middle rows. These givens anchor the solving process.

Step 1: Identifying Cells with Single Possibilities

Look first at rows, columns, or blocks with only one missing number due to given digits:

• For instance, in the top row, the numbers 2 and 3 are filled in the last two cells. Given that the row needs all digits 1–6, and four cells are blank, checking column and block constraints narrows possibilities.
• If in any 2x3 section only one cell is empty, the missing digit is uniquely assigned.

Step 2: Cross-Referencing Rows, Columns, and Blocks

Apply the process of elimination by scanning each row and column for missing digits. For example:

• Consider the second row: already present digits 2 and 1 limit placements of other digits. The only spots where 4 can appear may become clear by comparing with other rows and the block the cell is in.
• Looking vertically along a given column also helps resolve ambiguity. A digit missing in a row but already present in the column cannot be placed in certain cells, restricting choices further.

Step 3: Using the 2x3 Box Constraints Rigorously

Each 2x3 block must contain all digits 1–6 exactly once. For example:

• In the bottom-left block, the presence of digits 2 and 6 sets constraints on where remaining digits can appear.
• By considering the missing numbers for the block and checking their possible locations based on row and column occupancy, you can pinpoint the exact placement.

Step 4: Iterative Deduction

With some cells filled through logic above, revisit affected rows, columns, and blocks. New placements create additional constraints:

• This iterative narrowing eventually resolves cells where multiple candidates existed initially.
• Focus on rows or columns nearing completion to place last few numbers by exclusion.

Step 5: Recognizing Patterns and Avoiding Conflicts

When a digit's placement creates conflicts elsewhere, backtrack to test alternatives. The puzzle’s design ensures a unique solution, so conflicts guide correction of assumptions.

Example Application: Filling Specific Cells

// For example, consider cell in Row 1, Column 3:
// Row 1 has digits 2 and 3 in columns 5 and 6.
// Column 3 contains digits 2 and 4 already.
// The 2x3 block including this cell is missing certain digits.
// By elimination, only digit 5 fits here.

Repeat such logical deductions for each blank cell, always cross-checking against row, column, and block constraints.

Final Remarks

This puzzle emphasizes systematic elimination and careful scanning of all units (rows, columns, and boxes). By embracing these strategies, solving the Triominoes Sudoku becomes manageable and rewarding.

Keep practicing these techniques daily to improve your Sudoku skills — each step incrementally building towards the full solution.