Free online Hashi (Hashiwokakero, Bridges) puzzles with no ads and no sign-up. Pick a 7×7, 10×10, 13×13 or 17×17 grid or play the daily puzzle, every puzzle has exactly one solution, your game auto-saves on phone and desktop, and solved puzzles and fastest 10×10 times go on the leaderboard. Tap two islands to build a bridge, tap again to double it, undo any move, and press Check when you want to know how you are doing. The rules: islands are circles with a number. Connect them with bridges so each island has exactly as many bridges as its number. Bridges run straight across or down, never cross another bridge or island, at most two bridges join the same pair, and when you are done every island must be reachable from every other.
How to play
Touch: tap an island, then tap an island in line with it to add a bridge; tap the pair again for a double bridge, a third time to remove it. Tap a bridge to cycle it. Zoom button for the big grids. Keyboard: arrow keys move between islands, Enter or Space selects and connects, Backspace removes the last bridge, U undo, C check, Z zoom, Esc menu.
New in v1.0
First release: 7×7 to 17×17 Hashi grids plus a daily puzzle, every puzzle with exactly one solution, tap-to-bridge on phones, keyboard play on desktop, undo, a check button, auto-save and leaderboards.
