In which I solve an EXTREME SUDOKU for Twitter

Scott Stro-solves
28 Mar 202214:46
32 Likes 10 Comments

TLDRThe video transcript details a step-by-step process of solving a classic Sudoku puzzle, highlighting the strategy of observing patterns and using logic to eliminate possibilities. The solver focuses on the digits one and five, noting their interconnected placement, and uses this insight to progress through the puzzle. The video emphasizes the utility of coloring or marking cells to track the possible numbers, which aids in visualizing the puzzle's structure and leads to the completion of the Sudoku in 13 minutes.

  • 🧩 The video is about solving an extreme Sudoku puzzle, which follows classic Sudoku rules but with a twist.
  • πŸ” The process starts with scanning the board for obvious numbers and looking at rows, columns, and 3x3 boxes to place digits 1 through 9 without repeats.
  • 🟫 The speaker uses a method of elimination and observation, noting patterns such as the limited placement of certain numbers like ones and fives.
  • 🎨 Color-coding is suggested as a strategy to visually organize the puzzle and track the possible numbers for each cell.
  • πŸ”— The speaker identifies pairs of numbers that seem to be connected, such as ones and fives, and uses this to eliminate possibilities in other cells.
  • 🚫 The video emphasizes the importance of not rushing and taking the time to understand the connections and patterns within the puzzle.
  • πŸ’‘ When a pair of numbers like ones and fives is identified, it can help to eliminate these numbers from other cells that both see the pair.
  • πŸ“ˆ The speaker demonstrates a systematic approach to filling in the Sudoku, focusing on one number at a time and working through the rows and columns.
  • πŸ•’ The puzzle takes exactly 13 minutes to solve, showcasing the effectiveness of the strategies used.
  • πŸ€” The video highlights the value of patience and careful observation in solving Sudoku puzzles, especially when dealing with tricky parts.
  • πŸ“‹ The speaker encourages viewers to share their thoughts on the puzzle and suggests that solving Sudoku can be both a fun and mentally stimulating activity.
Q & A
  • What is the main topic of the video?

    -The main topic of the video is solving an extreme Sudoku puzzle.

  • What is the initial observation made by the speaker about the Sudoku?

    -The speaker initially observes that it is a classic Sudoku with standard rules, requiring digits 1 through 9 to be placed in each row, column, and 3x3 box without repeats.

  • What is the speaker's strategy for solving Sudoku?

    -The speaker's strategy involves looking at the numbers and seeing if anything jumps out, then systematically going through the numbers 1 to 9 to fill in the blanks.

  • How does the speaker approach filling in the numbers for the Sudoku?

    -The speaker looks for numbers that are limited to certain rows, columns, or 3x3 boxes, and uses the process of elimination to deduce where numbers must be placed.

  • What specific challenge did the speaker encounter with the ones and fives?

    -The challenge was that the ones and fives seemed to be grouped together and had an interesting connection, which required careful observation and elimination to solve.

  • What technique did the speaker use to solve the puzzle?

    -The speaker used the process of elimination, coloring techniques to visually organize the ones and fives, and logical deduction to solve the puzzle.

  • How long did it take the speaker to complete the Sudoku?

    -It took the speaker exactly 13 minutes to complete the Sudoku puzzle.

  • What advice does the speaker give for solving similar Sudoku puzzles?

    -The speaker advises using coloring techniques to visually organize the puzzle and to carefully observe how numbers are connected or grouped together to aid in solving.

  • What was the final result of the Sudoku?

    -The final result was a completely filled Sudoku puzzle with all numbers from 1 to 9 correctly placed according to the rules.

  • How did the speaker engage with the audience?

    -The speaker engaged with the audience by responding to a tweet from a viewer named Kia, and by inviting feedback and suggestions for future puzzles.

🧩 Initial Approach to Solving Sudoku

The speaker begins by discussing a tweet from Kia about an extreme Sudoku puzzle. They clarify that today's puzzle is a classic Sudoku with standard rules: place digits 1-9 in each row, column, and 3x3 box without repeats. The speaker shares their personal strategy for tackling Sudoku, which involves scanning the numbers and looking for patterns. They start filling in the grid, using logical deductions based on the available spaces and rules of Sudoku. The process is not the most efficient but gets the job done.

πŸ” Deep Dive into the Puzzle

The speaker continues to work on the Sudoku, focusing on the numbers one and five. They notice a pattern where these numbers seem to be connected and use this insight to eliminate possibilities in certain cells. By using the process of elimination and logical deduction, they successfully identify a one-five pair and use it to fill in more numbers. The speaker explains the strategy of coloring cells to visualize connections between numbers, which helps in solving the puzzle. They proceed to fill in more numbers, using the same logical approach, and eventually complete the puzzle.

πŸŽ‰ Solving the Tricky Parts and Wrapping Up

In the final part of the puzzle, the speaker addresses a tricky section involving the numbers one and five. They explain how recognizing these numbers as a pair helped them rule out possibilities in other cells. The speaker emphasizes the usefulness of coloring techniques to visualize and understand the relationships between numbers across the grid. They successfully navigate through the challenging part and complete the Sudoku puzzle in 13 minutes. The speaker concludes by summarizing the strategy used and invites feedback on the puzzle from the viewer.

Sudoku is a logic-based, combinatorial number-placement puzzle where the objective is to fill a 9Γ—9 grid with digits so that each column, each row, and each of the nine 3Γ—3 subgrids that compose the grid (also called 'regions') contain all of the digits from 1 to 9. In the video, the speaker is solving a classic Sudoku puzzle, which is the main theme of the content.
πŸ’‘Process of Solving
The process of solving refers to the method or strategy used to tackle a problem or task, in this case, solving a Sudoku puzzle. The speaker describes their personal approach to solving Sudoku, which involves scanning the grid and identifying numbers that 'jump out' at them, as well as using logical deduction to place numbers based on the rules of Sudoku.
πŸ’‘Pencil Marking
Pencil marking is a technique used in Sudoku where potential numbers are pre-filled in empty cells to help visualize the possible candidates for the final placement. This method aids in the logical elimination of options and makes it easier to see the solution. In the video, the speaker uses a similar technique by mentally noting possibilities and ruling out numbers in certain cells.
In the context of Sudoku, pairing refers to the strategic observation of two cells that cannot have the same number. In the video, the speaker identifies a 'one five pair' and explains how this pairing influences the possible numbers that can be placed in other cells, which is a crucial part of their solving process.
Elimination is a fundamental Sudoku strategy where you remove the possibility of certain numbers being placed in a cell based on the numbers that are already present in the same row, column, or box. The speaker uses this technique extensively throughout the video to narrow down the options and solve the puzzle.
πŸ’‘Color Coding
Color coding is a visual technique used to help solve Sudoku puzzles by associating different numbers with different colors to easily identify patterns and possibilities. While the speaker does not physically color the cells, they mentally group numbers together to visualize connections and make deductions.
A strategy in Sudoku refers to a specific approach or plan used to systematically solve the puzzle. The speaker shares their personal strategy of looking for patterns and connections between numbers, which is a strategic way of tackling the puzzle that leads to the solution.
Logic is the application of reasoning to solve problems and make decisions. In Sudoku, logical reasoning is essential to deduce which numbers can be placed in each cell based on the rules of the game. The speaker applies logical reasoning throughout the video to make their deductions and solve the puzzle.
Completion in the context of this video refers to the end result of solving the Sudoku puzzle, where all cells are filled with the correct numbers following the rules of Sudoku. The speaker's goal is to reach this state of completion, which signifies a solved puzzle.
A challenge in this context is the difficulty or problem presented by the Sudoku puzzle that the speaker must overcome to reach the solution. The video showcases the speaker's approach to tackling the challenge of the puzzle, including the tricky parts they encountered.
Engagement in this video refers to the interaction and involvement of the audience with the content, such as following along with the speaker's process or being intrigued by the puzzle-solving demonstration. The speaker's commentary and the interactive nature of solving a puzzle are designed to keep the audience engaged.

The process of solving a classic Sudoku is discussed, emphasizing the placement of digits 1 through 9 without repeats.

The speaker shares their personal approach to Sudoku, which involves looking at the numbers and seeing what jumps out.

A key strategy mentioned is to look at the numbers in sequence (ones, twos, threes) to identify potential placements.

The importance of recognizing patterns, such as the connection between ones and fives, is highlighted.

The use of the process of elimination is demonstrated, particularly with the placement of the number three.

The speaker explains how the presence of a seven leads to the deduction of other numbers in the grid.

A method of grouping numbers together, such as the ones and fives, is introduced as a way to solve the puzzle more efficiently.

The concept of coloring cells to visually track the possible numbers for a more organized approach is suggested.

The speaker illustrates how the placement of a number in one cell can influence the possibilities in other cells.

The process of deducing the placement of the number two in the grid is explained.

The speaker discusses the strategy of ruling out numbers based on the presence of other numbers in the same row, column, or box.

The completion of the Sudoku puzzle is described, with a total time of 13 minutes taken.

The speaker reflects on the tricky part of the puzzle involving the connection between ones and fives.

A final summary of the puzzle-solving strategy, emphasizing the use of visual tracking and logical deduction, is provided.

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