Changes

| '''11-20''' ||style="text-align:left"| Depends on the mine level.<br/>If the mine level is '''-4 or shallower''': '''Soft obstruction.''' The path is blocked by dirt, sand, silt, gravel, or some other relatively soft material. It requires 1 successful strike to clear (see: Pick mining).<br/>If the mine level is '''-5 or deeper''': '''Hard obstruction.''' The path is blocked by a hard rock. It requires 2 successful strikes to clearmaterial, such as granite, basalt, or gabbro.