Free rectangle puzzle helper

Shikaku Solver Online

四角に切れを入力し、全体を解くか、次の一手だけを確認できます。

Clues 0
Rectangles 0/0
Covered 0/0

Click a cell and type a clue number. Each clue is the area of one rectangle.

日本語: 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.

The article targets Shikaku solver, Shikaku puzzle solver, online Shikaku solver, free Shikaku solver, Shikaku helper, Shikaku answers, Shikaku hints and Shikaku strategy in this language.

  • Enter every numbered clue.
  • Solve the full grid.
  • Check for no solution, one solution or multiple solutions.
  • Reveal one forced rectangle as a hint.

日本語: 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.

日本語: 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.

FAQ

Shikaku Solver FAQ

次の一手だけ表示できますか?

はい。強制される長方形を1つ表示します。

対応サイズは?

4x4から10x10です。

数字はどう入力しますか?

マスをクリックして数字を入力します。

唯一解を確認できますか?

はい。

Shikakuとは?

日本の長方形分割パズルです。