P&C Game play online

We play with a finger, just by clicking. Paul (for the player) wants to go out of Carole (C)'s heart. Paul chooses path lines and Carole chooses path directions. The player have to find an optimal strategy of choosing lines to win the game with less steps and less time.
There are three levels, the Prime or Simple level, level 1 and level 2 (fidelity level). You can click on Help to get instructions.
Very nice game to enjoy on free time! And of course as anyone can see, the game is inspired by mathematics. For the little story: The word "Prime" for the first level is due the algorithm behind which uses prime numbers...