Blocks are removed only when you collect three of the same type. Each block you tap is stored in a limited selection area, so every choice matters. Fill all slots without completing a match, and the level is lost.
The challenge grows with each stage as the board layouts become more layered and the margin for error gets smaller. There is no rush success comes from observing the board, planning your moves, and staying in control.
When things get tight, support features and boosters are available to help you continue, giving you more flexibility in difficult moments.