How to play
(Note: the following pictures are not interactive.
Use the link below, if you want to recreate the displayed situations.)
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You start with a game board of empty tiles (gray) and blocked tiles (black).
(Play on this demo board.)
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Click on the yellow arrows to start a line. It extends in a straight manner
until it hits a non-empty tile.
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Continue the process until the line leaves the board.
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Repeat …
this …
process …
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… until the board has no empty tiles left and there is no
line under construction.
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If you notice that you cannot win anymore, hit the Reset board button
to start over.
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In case the line under construction causes the problem, you can also use the
Abort line button instead.