数独パズルとは?
無料のオンライン数独ゲーム。複数の難易度レベルの数独パズル。
Sudoku is a logic-based number placement puzzle that has become a worldwide phenomenon. The 9x9 grid must be filled so that each row, column, and 3x3 box contains the digits 1-9 exactly once. Despite involving numbers, Sudoku requires no arithmetic — it is purely a test of logical deduction and pattern recognition. Sudoku Puzzle provides three difficulty levels with hints, validation, and an instant solver.
Choose Easy, Medium, or Hard difficulty. Each level generates a valid, solvable puzzle with a unique solution. Easy puzzles have more starting clues (typically 36-40), making logical deduction straightforward. Hard puzzles have fewer clues (22-26), requiring advanced techniques like X-Wing or Swordfish patterns.
Click an empty cell to select it, then click a number from 1-9 on the keypad to fill it in. If the number is valid, it is placed. If it conflicts with an existing number in the same row, column, or box, the cell flashes red to indicate the error. Use the Erase button (or click the same number again) to clear a cell.
The Hint button reveals one correct number in an empty cell, helping you when stuck without giving away the entire solution. The Solve button fills all remaining empty cells correctly, showing the complete solution. Use the New Game button to generate a fresh puzzle at any time.