RectFlow: Shikaku Puzzles

Turn every number into the perfect rectangle. RectFlow: Shikaku Puzzles is a clean, satisfying logic game inspired by the classic Shikaku puzzle. Each number tells you the exact area of its rectangle. Draw non-overlapping rectangles, use every clue once, and cover the entire grid. Choose the way you want to play: • Classic — learn the rules and steadily sharpen your logic • Zen — solve balanced boards at a calmer pace • Speed — read patterns quickly and keep your momentum • Expert — tackle dense clues and larger grids Explore 400 levels that grow from approachable 5×5 boards into demanding large and irregular layouts. Your unlocked levels are saved locally on your device, so you can always continue where you stopped. No account is required. Simple rules. Deep logic. Find the rectangle hidden in every clue.