01Understanding the Rules
- A Hitori puzzle consists of a square grid filled with numbers.
- The goal is to black out or eliminate some of the numbers in the grid.
- No two blacked-out numbers can be adjacent or appear in the same row or column.
- The remaining numbers in the grid must not have any duplicates within a row or column.
02Marking and Eliminating
- Start by looking for numbers that are the only occurrence in their row or column.
- Mark these numbers as black and eliminate all other occurrences in their row or column.
- Continue marking and eliminating numbers until no more can be identified using this method.
- If you reach a point where no more numbers can be marked using the first method, move on to the next step.
03Finding Adjacent Numbers
- Examine the remaining numbers in the grid and look for adjacent pairs.
- If you find two adjacent numbers (either horizontally or vertically), mark the one that occurs more than once in the pair as black.
- Eliminate all other occurrences of that number in the grid.
- Continue finding and marking adjacent numbers until no more can be identified.
04Solving for Singletons
- Look for numbers that are the only remaining occurrence in their row or column.
- These numbers are called singletons.
- Mark the singletons as black and eliminate all other occurrences in their respective rows or columns.
- Repeat this process until all singletons have been identified and marked.
Conclusion
By following these steps, you should be able to solve any Hitori puzzle. Remember to carefully analyze the grid and make logical deductions based on the rules of the puzzle.
| Methods | Details |
|---|---|
| Step 1 | Understand the rules of Hitori puzzle |
| Step 2 | Mark and eliminate numbers with unique occurrences |
| Step 3 | Identify and mark adjacent numbers |
| Step 4 | Solve for singletons |
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