A combination of luck and experience will help you get a good score.
Get the food as fast as possible, if it is immediately available - you might gain extra points then.
If the piece of food is unreachable, or difficult to reach because of your own tail, it might be a good idea to wait until it is more easily available - meanwhile you could gather your tail into one part of the screen, keeping it out of the other parts for a little while.
More hints and tips will appear here.
History of Znake
Znake is inspired by the old classic snake-type of games. Znake was originally created in March 1996 with a simple all-time highscore system. It lived it's life on my account on the student server until November 1999, when it was moved here, and has had more than 3 million page visits currently.