Area Puzzle

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Claim as much area in 10 moves as you can. A move consists of two board clicks:
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Contributed by: Karl Scherer (February 2014)
Open content licensed under CC BY-NC-SA
Snapshots
Details
You cannot click a wall.
You can undo any move at any time by clicking a position inside an existing rectangular area. The clicked area disappears.
There are 25 challenges with fixed setups and two challenges with random setups. The first random setup uses twenty walls; the second one uses forty walls.
History
This game was previously published as the Zillions game Area Solo by the same author.
Permanent Citation
"Area Puzzle"
http://demonstrations.wolfram.com/AreaPuzzle/
Wolfram Demonstrations Project
Published: February 19 2014