Connect the numbers 2 players

Connect the numbers is online or offline drawing game for one or two players. The game is inspired by the game on paper. The task is to connect numbers according to their order without crossing lines. Players take turns. If a player crosses the line, new bridge is created. It is allowed to cross line over existing bridge. From a certain reached number (10, 15 or 20 ) is allowed to cross over circles with numbers, this state is indicated by green color.
The player with smaller amount of bridges wins.

Hint: Do not cover the pen by your finger during drawing. You can control the pen with your finger beside the pen.