1# Hashiwokakero23Connect numbered islands with bridges to form a single connected group.45## Rules67- Each island displays a number indicating exactly how many bridges must connect to it.8- Bridges run **horizontally** or **vertically** between adjacent islands.9- Each pair of islands can be connected by a **single** or **double** bridge, but bridges may never cross.10- The puzzle is solved when every island has the correct number of bridges and all islands form one connected group.1112## Controls1314### Navigation Mode1516| Key | Action |17|-----|--------|18| `Arrows` / `wasd` / `hjkl` | Jump to nearest island |19| `Mouse left-click` | Focus a clicked island |20| `Enter` / `Space` | Select island |2122### Bridge Mode2324After selecting an island, you enter Bridge Mode.2526| Key | Action |27|-----|--------|28| `Arrows` / `wasd` / `hjkl` | Build or cycle bridge in direction |29| `Enter` / `Space` | Deselect island |3031Pressing a direction once builds a single bridge, twice upgrades to a32double bridge, and a third time removes it.3334---3536| Key | Action |37|-----|--------|38| `Ctrl+R` | Reset puzzle |39| `Ctrl+H` | Toggle full help |40| `Escape` | Return to main menu |4142## Tips4344- **Start with extremes.** Islands showing their maximum value (like an `8` in the interior or a `4` in a corner) have only one valid configuration -- fill those in first.45- **Look for forced connections.** An island with only one neighboring island in each required direction has no choice; those bridges are guaranteed.46- **Work from the edges inward.** Corner and border islands have fewer possible neighbors, making them easier to solve early and giving you constraints to propagate.