My Snake io

Here is the snake world. Each snake is very greedy. You will control a snake to eat all the food on the map. But your snake head can not hit someone else's snake, or you will die, then someone else's snake can eat your body. The same snake heads of others hit your body, the same will die.
The trick is to use the accelerator key. Can make you easier to win. Rely on your operation to reverse the situation.
Good luck!