A solution by Uu (Time: 6.5s, Blocks used: +54)
A solution by 好人 (Time: 6.3s, Blocks used: +59)
A solution by L3S (Time: 11.9s, Blocks used: +106)
A solution by cs allen (Time: 7.6s, Blocks used: +75)
A solution by cs allen (Time: 7.1s, Blocks used: +41)
A solution by J (Time: 7.7s, Blocks used: +71)