How to play

What is Hashi?

The puzzle is played on a rectangular grid with numbers that represent islands. The goal of the game is to connect all islands with bridges so that they form one group. A bridge is a connection between two islands.

Rules of the game

  • The number on the island represents how many bridges must be connected to that island.
  • Two islands can only be connected by one or two bridges.
  • Bridges can only go horizontally or vertically.
  • Bridges can't cross any other bridges or islands.
  • In the end, all islands must be connected so that you can travel from any island to any other island.


  1. Start with small numbers. When you're first learning to solve Hashi puzzles, it's helpful to start with puzzles that have small numbers of islands. This will make it easier to visualize the connections between the islands and to develop a strategy for solving the puzzle.
  2. Look for islands with a number of possible directions that's about half of the clue. For example, a 4 in the corner has two possible directions with two bridges each. A 6 on the edge has three possible directions with two bridges each. An 8 in the middle has four directions with two bridges each.
  3. Pay attention to new corners and edges you create. When you create a new corner or edge, it creates new possibilities for connecting islands. Be sure to check these new possibilities carefully.
  4. Never guess! Only make moves based on logical deductions. If you're not sure what to do, try to back up and make a different move.
  5. Use a strategy that works for you. There is no single "best" strategy for solving Hashi puzzles. Experiment with different strategies and find one that works well for you.
  6. Don't be afraid to make mistakes. Everyone makes mistakes when they are learning to solve Hashi puzzles. The important thing is to learn from your mistakes and to keep trying.