you don't
Only rock/groung type Pokemon can learn it
dig it up in the underground or Oreburgh Gate, in the basement, you can use a combination of Rock Smash, Surf, and Strength to reach it.
you need the hm rocksmash.Once you have it teach it to your Pokemon. then press A to a rock(only breakable rocks plus you need the Pokemon that knows rocksmash in your party.It may not work until you get another gym badge):)
You have to have a Pokemon that knows the move Rock Smash, which is obtain from a man in a cave near Oreburgh City, the City with the first gym. But before you cam use Rock Smash, you have to beat the Oreburgh City Gym Leader, Roark. Once you have beaten him, you can use Rock Smash not only in battle, but out on the feild.
you have to go to pastoria city after you get your badges at orebergh and eterna
you must HM rock smash.
You need the move rock smash
From the 1st gym leader
you go right from Jubelife city
Only rock/groung type Pokemon can learn it
what smash isn't a move but if you meant rock smash you get it from roark in the mining place at orebough sorry spelt wrong
I think if you use Rock Smash on them Pokemon may come out!
Geodude learns Rock Smash by teaching it HM06 in Pokemon Diamond, Pearl, and Platinum.
route 214 near cave need rock smash.
on route 214 just behind two boulders which you can smash
A Hiker in the cave by Orebugh gives it to you after you have obtained the Coal Badge.
Defeat the first Gym Leader.The Gym Leader is going to give you the Rock Smash attack. Teach a Pokemon the attack. Then you can break cracked rocks.