In my experience playing Block Blast, the best way to earn high scores is by clearing multiple rows or columns at the same time. Single clears help keep the board open, but combo clears give much larger bonus points and can increase your score very quickly. I’ve noticed that planning a few moves ahead and saving certain blocks for the right moment makes a huge difference. It also adds more strategy to the game because instead of placing pieces randomly, you start focusing on setting up bigger chain clears. Those moments when several lines disappear together are the most satisfying part of the game and usually lead to my highest scores.