![]() Be Patient: Intermediate-level puzzles may require a bit of trial and error and backtracking.Use the Process of Elimination: As you fill in more numbers and make progress, revisit the entire puzzle and see if you can spot new possibilities or eliminate numbers from certain cells based on what’s been filled in.They involve identifying patterns of numbers that lead to eliminations in rows and columns. X-Wings and Swordfish: These are more advanced techniques but can be useful in intermediate puzzles. ![]() When you eliminate a number as a possibility for a specific cell, remove it from the candidate list for that cell.
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