In the game, you can select either a row or a column and solve the tiles within them.
The lock mechanism is activated by pressing on the number holder. By tapping the desired number holder, it highlights that column or row, and only the tiles within it are responsive.
In cases where you select both a row and a column, the intersection between them is highlighted for precise tile selection.
The lock mechanism works with the Shovel Booster, but other boosters reset the Lock mechanism.
NOTE: If there are obstacles like Slime, Hedge, Frost, Shell, and Bee on the tiles, those tiles will be blocked, and you won't be able to solve them.