HexiHashi

HexiHashi is a puzzle game based on Hashiwokakero. You connect numbered nodes on a triangular grid with single or double bridges. A puzzle is complete when every node is connected and the number of bridges attached to each node matches its number.

Triangular-grid puzzles

Unlike classic Hashi, which uses a rectangular grid, HexiHashi gives each node six possible connections instead of four. Pure deduction normally solves less than 10% of a puzzle, even small ones, so solving focuses more on intuitive heuristics, testing hypotheses, backtracking and adjusting solutions. A puzzle can have more than one acceptable solution, but the puzzle-generation algorithm guarantees that every puzzle is solvable.

Modes and progression

The game includes three modes and a levelling system:

• Time Attack: a game mode.
• Move Master: a game mode.
• Endless: a game mode.

It also has a hint system, dynamic sound effects that harmonize with the background music, and a piano score by Steve McRae.