You can't get the move rock smash in Pokémon Yellow version. The move does not exist. It was introduced in Gold and Silver.
Find a Pokemon that can learn Rock Smash. Like Geodude.
Geodude learns Rock Smash by teaching it HM06 in Pokemon Diamond, Pearl, and Platinum.
After you get rock smash go through the cave and on Rt 204 and keep going on that youre there.
There is no way to break the boulders that don't have cracks. I've played through the game a few times and I don't recall coming to any place where you need to break one to get to an item or anything.
No, it cannot learn Rock Smash.
from the digger
Find a Pokemon that can learn Rock Smash. Like Geodude.
by getting rock smash from oreburgh gym leader
near Ravaged Path
you can use the hm strength you can smash rocks with rock smash
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At the Mt. Coronet Range Entrance (right at the beginning), a hiker will talk to you and give you HM06 (Rock Smash).
You need to teach the HM strength to a pokemon.
Teach the HM Rock Smash to a Pokemon and interact with the rock. Round rocks need the move strength and not all Pokemon can use these moves.
cut fly surf defog rock smash rock climb waterfall and strength
Cut, surf, waterfall, rock climb, defog, fly, and rock smash.
there are 7 hidden machine found in Pokemon diamond:- rock smash cut strength fly surf waterfall rock climb defog (not in oder)