Strength is held by a sailor inside a cafe in Olivine City. The cafe is directly next to the Pokemon Center.
HM STRENGTH HM STRENGTH
go to olivine..find a tavern near the pokemon center..a sailor will give you STRENGTH HM
By using the HM Strength.
In the house beside the Pokemon center in olivine city
you mest get the hm strength.
Use the HM move Strength.
With the HM move strength.
the hm move strength is found in the cave Rusturf tunnel
First, you have to get the HM strength, then teach it to and a Pokemon and you can move boulders.
You get the hm strength and give it to one of your pokemon
Any Pokemon able to learn the HM strength can move boulders. To shatter rocks you need the HM Rock Break.
hm strength or hm rock smash