- Start by analyzing the row and column clues to identify cells that must be filled or left empty.
- Look for rows or columns with a single large number (like '9' in row 10) which means a continuous block of 9 filled cells. This forces specific placements based on the grid's width.
- Use the intersection of row and column constraints to find cells that are definitively filled or empty.
- For example, if a column clue requires a block of 7 and the intersecting row only allows a block of 5, you can deduce where the overlap must occur.
- Continue this process iteratively, filling in cells that are certain and using them to constrain possibilities in adjacent rows and columns.
- Pay special attention to rows/columns with multiple small numbers, as they often require precise spacing between blocks.
- Use the fact that blocks must be separated by at least one empty cell to eliminate impossible configurations.
- Repeat until all cells are determined.
Parent Tip: Review the logic above to help your child master the concept of printable hanjie puzzles.