+---+---+---+------>+---+
| o \| |
| + + | + + |
| | | | | | |
| +--+--+--+--+--+--+ |
| | | | | | |
| + + + + + |
| | |
| + |
+ | +
| +--+--+--+--+ |
| | |
| + + + + + |
| | | | | | |
| +--+--+--+--+--+--+ |
| | | | | | |
| + + + + + |
| | |
+o--+---+---+---+---+--o+
| |
| |
| |
| |
+ +
| |
| |
| |
| |
+---+---+---1---+---+---+
Yggdrasil
1 = Yggdrasil {15-50}
Here is the universal key.