Sudoku Free: Tips, Tricks and Strategies.

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Discussion in 'sudoku-free-f00' started by Asim - Jul 8th, 2023 7:10 pm.

Asim

Tip 1: Start with the easy numbers: Look for any numbers that are already filled in the puzzle and start by placing them in their appropriate cells. This will give you a starting point and help you identify the possible placements for other numbers.
Tip 2: Use the process of elimination: Look for rows, columns, and 3x3 boxes that already have a number filled in. Use that information to eliminate the possible placements for other numbers in those regions. This will narrow down the options and make it easier to solve the puzzle.
Tip 3: Look for naked singles: A naked single is a cell that can only contain one possible number. Look for cells that have only one candidate left and fill in that number. This will help you uncover more numbers and make progress in the puzzle.
Tip 4: Use cross-hatching: Cross-hatching involves scanning rows and columns to look for missing numbers. Start with a number and scan each row and column to see if it can fit in any empty cells. This technique can help you identify potential placements for numbers.
Tip 5: Use the "what if" technique: If you reach a point where you're stuck and can't make any more progress, you can try using the "what if" technique. Pick a cell with a few possible candidates and choose one of them to see if it leads to a contradiction. If it does, you can eliminate that candidate and try another one. If it doesn't, you can continue solving the puzzle based on that assumption.
Tip 6: Practice regularly: Sudoku is a skill that improves with practice. The more you solve puzzles, the better you'll get at recognizing patterns and applying the strategies mentioned above. Make it a habit to solve Sudoku puzzles on a regular basis to sharpen your skills.