How to optimally solve the flood fill puzzle?

Question

I like playing the puzzle game Flood-It, which can be played online at:

https://www.lemoda.net/javascript/flood-it/game.html

It\'s also available as an iGoog

Answer 1

After playing the game a few times, I noticed that a good strategy is to always go "deep", to go for the colour which goes farthest into the unflooded territory.