Sudoku

🎯 कैसे खेलें

Sudoku is the classic 9×9 number puzzle: fill every row, column, and 3×3 box with digits 1 through 9, with no repetitions. You start with a partially filled grid, and your job is to deduce each remaining digit using pure logic. Tap a cell to select it, then choose a number to fill in; an erase button clears mistakes. You pick a difficulty level before you start. No guessing is required if you follow the logic correctly.

💡 युक्तियाँ और तरकीबें

• Scan rows and columns first — if a digit appears eight times, the ninth placement is forced.
• On harder puzzles, track candidate digits carefully; it turns guesswork into deduction.
• Look for 'naked pairs' — two cells that can only hold the same two digits eliminate those digits elsewhere in the unit.
• When stuck, rotate your attention: start with boxes, then rows, then columns, and repeat.
• Avoid guessing; if you can't see the next step, you've missed a logical pattern somewhere.