A shadow pokemon!
Recently the famous game Pokemon
SwordString was released. XGN, one of the biggest fan of Pokemon, decided to have a try.
In each battle, your Pokemon can be seen as a string A and the enemy can be seen as a string B. One can make a critical hit if B is a substring of A.
XGN can weaken the foe first. He can remove a character from B each turn.
What's the minimum turn of weakening to make a critical hit?
Remove the last 'e' in B and B will be a substring of A
Screenshot from Pokemon Essentials
Is it really good to release 2 simple questions at once?