Kuadra — Shikaku Puzzle

About this app

Kuadra is a beautifully simple Shikaku puzzle — divide the grid into rectangles, one number at a time, and quiet your mind while you do it. The rules take ten seconds to learn and a lifetime to master. Every grid has exactly one solution: split it into rectangles so each contains a single number, and that number equals the rectangle's area. No guessing, no luck — just pure logic. WHY YOU'LL LOVE IT • 10,000 handcrafted puzzles across 100 packs, from gentle 5x5 grids to expert challenges • A fresh Daily Challenge every day, with streaks to keep your run alive • Global leaderboards — compare your solve times and climb the ranks • Three game modes and difficulty tiers for every skill level • Undo, redo, and pencil notes so you can think it through • Progress, stats, and 16 achievements to chase BUILT TO RELAX No timers forcing your hand, no clutter, no noise. Play one quick puzzle on a coffee break or lose an hour in a long session — Kuadra meets you where you are. Haptic feedback and clean, calm visuals make every solve satisfying. PLAY YOUR WAY • Six themes, including light and dark • Accessibility built in: large text and high-contrast options • Plays fully offline — no connection required • Optional sign-in to sync your progress across devices Whether you love Sudoku, nonograms, or just a good logic workout, Kuadra is your next daily habit. Download it free and solve your first grid in seconds.

Leagues that make sense at a glance • The next league opens as soon as a league fills two full rooms. No more waiting for the weekly reset to climb. • The weekly countdown now talks about your position, not the league in the abstract. It tells you whether you are in the promotion zone, safe, or sliding toward demotion. • When the league above you is not open yet, the promotion line is drawn anyway, greyed out, with a note on what it takes to unlock it. Tap it for the full explanation. • Leaderboard rows are tighter on the right, so names have the space they deserve. • Reactions sit properly centred in their circles. • Estimated solve times on the pack list are now measured from real play instead of guessed. Several were far off. • League points for thirteen shaped packs were lowered to match how quickly they actually solve.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Sep 11, 2026 · 7:36 PM Free