A solution by Djean (Time: 3.3s, Blocks used: +9)
A solution by Gerd Draufsch (Time: 3.9s, Blocks used: +6)
A solution by Ela (Time: 3.6s, Blocks used: +5)
A solution by Lui (Time: 2.0s, Blocks used: +2)
levelsbot (a lot of work, for that) Lucky Strike... :-p
A solution by Ela (Time: 4.9s, Blocks used: +6)
A solution by Noodlemire (Time: 2.0s, Blocks used: +1)
A solution by Jcj (Time: 8.6s, Blocks used: +8)
A solution by 好人 (Time: 5.6s, Blocks used: +9)
A solution by Just.. (Time: 4.0s, Blocks used: +8)