A solution by Djean (Time: 4.9s, Blocks used: +3)
A solution by Ela (Time: 4.8s, Blocks used: +7)
A solution by mungo (Time: 3.4s, Blocks used: +8)
A solution by Lui (Time: 4.1s, Blocks used: +6)
A solution by Sparky (Time: 9.7s, Blocks used: +5)
A solution by Jcj (Time: 3.0s, Blocks used: +5)