Blocked isolation
Code: Select all
+ + +
| 1 n
+ + +
| 5 8
+---+---+ +
| n 1 5
+ + + +
| n n |
+ + +
| n n |
+ + + +
| n 8 5
+---+---+ +
Tunneling
Code: Select all
+ + +
| 9 n
+ + +
| 2 7
+---+---+---+---+---+ +
| 9 n n n 2 7
+ +---+---+---+---+ +
| 2
+ +
Tunneling can be done with any odd isolated area.
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