Islattice
Connect the islands. Complete the lattice.
A clean, satisfying logic puzzle inspired by the classic Japanese game of Hashi (Hashiwokakero). Draw bridges between numbered islands until every island carries exactly its number and the whole board forms one connected network — solvable by pure logic, with no guessing.
Coming to the App StoreComing to Google Play
- Four difficulty tiersEasy to Expert — each a hand-tuned, single-solution board.
- Daily puzzleOne date-seeded board, shared worldwide, with a streak to keep.
- Always logic-solvableEvery puzzle has exactly one solution, reachable without guessing.
- Free undo & hintsUnlimited undo; an optional hint that simply won’t set a best time.
- Fully offlineNo accounts, ads, tracking, or data collection.
- Free, with an optional tipA tip is a gift — it unlocks nothing.
New to Hashi? The Support page has a quick how-to. Questions about data? See Privacy.