You need to win 10 games on both expert and normal difficulties, including 5 in a row. Winning can be quite a challenge for the normal player. Luckily, someone has solved the game (for their PhD thesis), making these achievements easy using an online solver, which can be found HERE. Click PLAY and it will bring up a applet with the solver. Each vertical line in the program represents a column in the game. You can manually click columns of the solver to mark the move the AI has made. Use the "move" button to generate the move you need to make next. You will win every time using this solver. The "<" button can be used to go back if you make an error and the "<<" button will reset the solver for the next game.