Português: Shikaku solver
This translated page explains the same Shikaku solver workflow: enter area clues, solve the rectangle cover, check whether the grid is possible and reveal one next logical move.
- Enter every numbered clue.
- Solve the full grid.
- Check for no solution, one solution or multiple solutions.
- Reveal one forced rectangle as a hint.
Português: How to use it
Choose the grid size, click a cell and type the printed clue number. Delete clears a selected clue.
Solve fills every rectangle. Next move shows one highlighted deduction and Apply move adds it to the board.
- Blank cells stay blank.
- The clue total must equal the grid area.
- Examples show the input format.
- Clear rectangles keeps the clues.
Português: Rules and strategy
Every Shikaku rectangle contains exactly one clue and its area equals that clue. Rectangles cannot overlap and the finished grid has no gaps.
Useful strategy starts with factor pairs, corners, edges, small clues and prime numbers. A rectangle that appears in every valid solution is a logical next move.