Hashi (Bridges)

New to Hashi? The Sky Post lets you build real bridges between floating islands and send the morning post.

Tap one island, then the nearest island in the same row or column. Repeat the pair to cycle through one bridge, two bridges and no bridge. Bridges cannot cross or pass through an island.

Each number is the exact number of bridges that island needs. A double bridge counts as two. Match every number and join all islands into one network. Loops are allowed.

Switch Exclude on to mark a pair that should have no bridge. Switch it off to build again. Undo and redo are unlimited within this session. Hint explains a supported deduction from your current board; Apply hint makes that move. A contradiction message means the current choices need correction.

Keyboard: Tab to an island. Arrow keys move to neighbouring islands; Enter or Space selects and connects. Escape clears selection. N toggles Exclude, H asks for a hint, Ctrl/Cmd+Z undoes, and Ctrl/Cmd+Shift+Z or Ctrl/Cmd+Y redoes.

Matching numbers isn't enough

Progress saves locally when browser storage is available. It does not sync across devices. Reload restores the board; undo/redo history lasts for this session. The puzzle bank is finite, with original checked boards rather than live generation.

Use Hint for a logical explanation, or undo a choice. Reveal solution below shows the complete answer and marks this puzzle as assisted. It is separate from a hint.