Input area / log area:
For an explanation of the rules, see this entry in Wikipedia.
This (purely browser based, Java-free) Masyu program lets you define and play your own Masyu puzzles or import puzzles from other sources. It can also be called as a hyperlink from any web page. If you are a puzzle designer and would like to include this application on your website, contact me at "helmut (at) saueregger (dot) at"
This is the example from Wikipedia (composed by Adam R. Wood):
It is possible to import puzzles. The puzzle on the left is represented by this text:
..w.w..... ....w...b. ..b.b.w... ...w..w... b....w...w ..w....w.. ..b...w... w...b....w ......ww.. ..b......b
Highlight the puzzle text, copy and paste it into the input/log area above and hit the "import" button.
Then click on "play" to start solving this puzzle. Clicking on a square lets you set a tube segment there. Click on the same square repeatedly to change shape. Only empty squares can be set.