← Game Brain

How to play Hashi

Learn the basics of the game and how controls work in the app.

Goal

Connect islands with bridges so each island matches its number. All islands must form one connected network.

Rules

  • Each island number is how many bridges must touch that island.
  • Bridges run only horizontally or vertically.
  • Bridges never run diagonally.
  • Between two islands, place up to two bridges.
  • Bridges cannot cross other bridges or islands.

Controls

  • In the app, tap between two islands to cycle: none → single → double → none.
  • Or tap one island, then another, to cycle that bridge.
  • You can overfill while solving; island numbers show the target.

Hints

In the app, tap the Hint button for a suggested bridge.

Tips

  • Start with islands that have high numbers or few neighbors.
  • A "1" has one bridge. An "8" needs four double bridges (or equivalent).
  • Keep one connected network across all islands.