The yellow miner jumps two squares forward and can jump over lava. Click on the miner and then on a highlighted square to move.

The red miner moves one square forward and can push a rock one square further. Click on the miner and then on a highlighted square to move.

Try to get both miners to their target square. In a challenge (from junior level) where they are both involved, you may need to think carefully about which one should reach their target square first.