A solution by Djean (Time: 5.7s, Blocks used: +9)
A solution by kszys (Time: 1.3s, Blocks used: +47)
A solution by DNS4 (Time: 4.4s, Blocks used: +93)
A solution (Time: 1.3s, Blocks used: +100)
A solution by Lui (Time: 1.7s, Blocks used: +19)
A solution by Shadow Hog (Time: 1.0s, Blocks used: +14)