Masyu (Windows)

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Masyu is a single-player logic puzzle originating in Japan.

Two kinds of symbols are placed onto a grid and the object is to draw a single continuous line through them following a few simple rules:
  • The loop must be a continuous path that begins and ends at the same point.
  • The loop must not pass through a cell more than once.
  • All segments of the loop must be horizontal or vertical lines.
  • The loop must pass straight through a white circle cell, but make a 90° turn in the next and/or previous cell in the path.
  • The loop must make a 90° turn on a black circle cell, but has to travel straight through the next and previous cells in the path.
Optional player aids consist of in-game instructions which open in a new window, a self-explanatory 'Prevent Illegal Moves' function, a 'Verify Puzzle' option which colours correct connections green and incorrect lines red, and an 'Undo Last Move' function.

This game has three difficulty levels, a save feature, a print function so the player can solve the puzzles without a computer, a pause key and a 'boss key' which instantly minimises the game but keeps it running.


Masyu Windows The easier puzzles use a smaller grid
The game has an option to change the colour of t he background, here it's been changed from the green of the earlier screenshots to a nice restful blue
Masyu Windows Here the 'Verify Puzzle' option has been used to show the correct and incorrect lines
Masyu Windows The in-game help opens up a new window
Masyu Windows The game's high score table is a record of fastest times.
It comes prepopulated with fake times

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piltdown_man (138874) added Masyu (Windows) on Mar 19, 2015