Straight Across Puzzle

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First, click the board to drop your man. At each turn you slide North, South, East, or West as far as possible to an empty position. The path you travelled will be marked by straight lines. You cannot go through walls. You can cross your own path at 90°. With each move, you have to turn 90°.
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Contributed by: Karl Scherer (September 2014)
Open content licensed under CC BY-NC-SA
Snapshots
Details
There are 10 challenges with fixed setups and two challenges with random setups.
Use the "<" and ">" arrows to select the next or previous challenge with a fixed setup.
Use the "<<" and "<" arrows to jump to the first or previous move.
Target
The length of the longest known solution is shown at the left border. Can you beat it?
History
This game was published previously as the Zillions game "Straight Across" by the same author. That is where you can find the solutions to the puzzles presented here.
Permanent Citation
"Straight Across Puzzle"
http://demonstrations.wolfram.com/StraightAcrossPuzzle/
Wolfram Demonstrations Project
Published: September 10 2014