Shikaku Puzzle

Shikaku Puzzle is a calm offline logic puzzle for players who enjoy spatial deduction. Each board contains clue cells. Your goal is to divide the grid into rectangles so every rectangle contains exactly one clue and the rectangle area matches that clue.

Start with compact 4x4 boards, tap a clue, then tap the opposite corner to place a rectangle. The app gives immediate feedback when a rectangle does not match the clue area or when the board still needs work.

Features:
- Offline Shikaku-style rectangle puzzles
- Clear 4x4 grid with readable clue cells
- Local solved-puzzle history
- History detail navigation for solved boards
- Delete-one and reset-all history confirmations
- Native cache size display and cache clear control
- App-specific About dialog

Limitations:
- Puzzle progress is stored only on this device.
- No account sync, cloud backup, multiplayer, or online leaderboard.
- The current release focuses on a small starter puzzle set.

Privacy:
Shikaku Puzzle does not require an account and does not include ads, billing, analytics, camera, microphone, location, contacts, or media access. Puzzle progress and cache data stay on the device unless the user clears them.
Tags: logic puzzle, shikaku, rectangle puzzle, offline puzzle, brain game