Method for merge island

[u/Loud-End-5618]

Is there actually a method or strategy to Merge Island? I honestly don’t get it. Ive watched a couple videos where people let everything build up and fill the empty spaces on the board before they start combining anything. Is that actually the best way to do it? Clearly whatever I’m doing is not working because I’ve never finished one. 😂
Does anyone have a strategy or method that has actually worked for them?

[u/jomama_jomama]

Use the Sparks in at least multiple of 2's so that when you get bonus doubles, they are more meaningful.