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Detailed Game Introduction

[JA TRANSLATION NEEDED] Daily Sudoku provides a fresh, classic Sudoku puzzle for you to solve every single day. Sudoku is a world-renowned logic-based, number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids that compose the grid contain all of the digits from 1 to 9. It’s a pure logic puzzle that requires no calculation or mathematical skills, only patience and concentration.

Gameplay Strategy & Walkthrough

[JA TRANSLATION NEEDED] 1. The Basic Rule: The golden rule of Sudoku is simple: 1 through 9, once per row, once per column, and once per 3x3 box. [JA TRANSLATION NEEDED] 2. Scanning (Cross-hatching): The most basic solving technique. Pick an empty cell. Look at its row, column, and 3x3 box to see which numbers are already used. By process of elimination, you can often find the only possible number for that cell. [JA TRANSLATION NEEDED] 3. Penciling In (Notes): For more difficult puzzles, use the “notes” or “pencil” feature. In an empty cell, enter all the possible numbers that could legally go there. As you fill in other cells, you can eliminate candidates from your notes, eventually leaving only one possibility. [JA TRANSLATION NEEDED] 4. Look for “Naked Singles”: This is when a cell has only one possible candidate number left in its notes. Fill that number in immediately. [JA TRANSLATION NEEDED] 5. Look for “Hidden Singles”: This is when a candidate number appears only once within the notes of a specific row, column, or 3x3 box. Even if the cell itself has other candidates, that number must go in that cell for that specific row/column/box.

Controls Guide

• Select a Cell: Click on any empty cell in the 9x9 grid.
  • A: Not at all. Sudoku is a logic puzzle, not a math puzzle. It uses numbers, but you could just as easily use nine different symbols or colors. It’s all about pattern recognition and deduction.（日本語訳が必要）
  • A: Most digital versions, including this one, will immediately highlight the mistake by showing you the conflicting numbers in red, allowing you to correct it right away.（日本語訳が必要）
  • A: For easy puzzles, you might not need it. But for medium to hard puzzles, it’s almost impossible to keep all the possibilities in your head. Making notes is a fundamental technique for systematically solving complex Sudoku puzzles.（日本語訳が必要）
  • A: Not at all. Sudoku is a logic puzzle, not a math puzzle. It uses numbers, but you could just as easily use nine different symbols or colors. It’s all about pattern recognition and deduction.（日本語訳が必要）
  • A: Most digital versions, including this one, will immediately highlight the mistake by showing you the conflicting numbers in red, allowing you to correct it right away.（日本語訳が必要）
  • A: For easy puzzles, you might not need it. But for medium to hard puzzles, it’s almost impossible to keep all the possibilities in your head. Making notes is a fundamental technique for systematically solving complex Sudoku puzzles.（日本語訳が必要）
• Enter a Number: After selecting a cell, click on a number from the on-screen number pad to place it in the cell.
• Notes/Pencil Mode: Look for a button (often with a pencil icon) to toggle between “Answer” mode and “Notes” mode. In Notes mode, the numbers you enter will be small candidates.
• Eraser: Use the eraser tool to clear a number or notes from a cell.

Frequently Asked Questions (FAQ)

• Q: Do I need to be good at math to play Sudoku?

コントロールガイド

[JA TRANSLATION NEEDED] * A: Not at all. Sudoku is a logic puzzle, not a math puzzle. It uses numbers, but you could just as easily use nine different symbols or colors. It’s all about pattern recognition and deduction.

• Q: What happens if I enter a wrong number? [JA TRANSLATION NEEDED] * A: Most digital versions, including this one, will immediately highlight the mistake by showing you the conflicting numbers in red, allowing you to correct it right away.

• Q: Why should I use the “Notes” feature?

  • A: For easy puzzles, you might not need it. But for medium to hard puzzles, it’s almost impossible to keep all the possibilities in your head. Making notes is a fundamental technique for systematically solving complex Sudoku puzzles.

• Q: Why should I use the “Notes” feature?
  • A: Most digital versions, including this one, will immediately highlight the mistake by showing you the conflicting numbers in red, allowing you to correct it right away.
• Q: What happens if I enter a wrong number?
  • A: Not at all. Sudoku is a logic puzzle, not a math puzzle. It uses numbers, but you could just as easily use nine different symbols or colors. It’s all about pattern recognition and deduction.
• Q: Do I need to be good at math to play Sudoku?

よくある質問（FAQ）

• Eraser: Use the eraser tool to clear a number or notes from a cell.

  • A: Not at all. Sudoku is a logic puzzle, not a math puzzle. It uses numbers, but you could just as easily use nine different symbols or colors. It’s all about pattern recognition and deduction.

• Notes/Pencil Mode: Look for a button (often with a pencil icon) to toggle between “Answer” mode and “Notes” mode. In Notes mode, the numbers you enter will be small candidates.

  • A: For easy puzzles, you might not need it. But for medium to hard puzzles, it’s almost impossible to keep all the possibilities in your head. Making notes is a fundamental technique for systematically solving complex Sudoku puzzles.

• Q: Why should I use the “Notes” feature?

  • A: Most digital versions, including this one, will immediately highlight the mistake by showing you the conflicting numbers in red, allowing you to correct it right away. [JA TRANSLATION NEEDED] * A: For easy puzzles, you might not need it. But for medium to hard puzzles, it’s almost impossible to keep all the possibilities in your head. Making notes is a fundamental technique for systematically solving complex Sudoku puzzles.