Gridoku: Shikaku Logic Puzzle
Android app by opentrop labs. Puzzle · opentrop labs
- Store rating
- Unknown
- Store rating count
- Unknown
- Download price
- Free to download
- In-app purchases
- Not listed in captured metadata
- Version
- 1.0.1
- Listing last refreshed
- 2026-09-12
View the original store listing
Store description excerpt
Gridoku is a Shikaku puzzle: draw rectangles sized by the numbers and divide the whole grid with no gaps. A classic Japanese logic puzzle, a fresh board every day, and a worldwide leaderboard. ■ Three rules · Drag to draw a rectangle. · Each rectangle holds exactly one number, and its area (cell count) must equal that number. · Fill every cell and the board clears itself. Ten seconds to learn, hours to put down. No math beyond counting cells — just numbers, rectangles, and logic. ■ Daily puzzle · Global ranking · Every midnight the whole world gets the same board. One round a day keeps your streak alive. · Clear it and see your rank on the spot: today's top 100, all-time fastest solves, your top-% and whoever just passed you. · Pick a nickname and you're in — no account, no sign-in. · Stamp the daily calendar, chase a perfect month, and earn bonus hints at streak milestones (3, 7, 14, 30 days and beyond). ■ Campaign · Endless · Campaign: 5 chapters, 50 stages. Start at 5×5 and grow to 12×12. · Endless: boards keep growing as you level up — up to 12×12, 144 cells. · Hall of Fame: best clear time for every level and your longest streak. ■ Calm by design · One drag draws, one tap erases. Portrait, one-handed. · Warm paper-and-ink minimalism — each piece tints as the board comes together. · Gentle haptics and soft background music, both switchable in Settings. · Stuck? Spend hints earned from daily clears, or top up with a short ad. · Puzzles work offline (only ranking needs a connection) and progress saves automatically. · English and Korean. ■ Made for · Fans of Sudoku, Nonograms (picture cross), Killer Sudoku and other number logic puzzles · Five quiet minutes on the commute, at lunch, or before sleep · Anyone building a daily brain-training habit · Players who want to race the world on the very same puzzle Shikaku, Rectangles, Number Area — many names, one satisfying idea. Today's puzzle is waiting. Contact: siulabs.dev@gmail.com
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