When it's your turn press up and down or left and right to choose a number when you choose the right number press space when it's the CPU's turn press space when you want it to stop choosing.
So the way this works is by you picking a number that you want the CPU (Central Processing Unit) is doing the same thing until it's between 79 and 89 because at that point if the CPU adds 10 onto 79 it = 89 and if it's 86 it needs to add 3 to get 89 and when 89 comes up that's when if you add 1 to 89 to get 90 it will add 10 and win but if you add 10 to 89 you'll get 99 and it'll add 1 and win but in between like adding 7 onto 89 you get 96 and then the CPU will add 4 and win that's why it's impossible to win this is kinda messed up for real life because I'm not really sure what would happen. It is mathematically possible and that's by getting it close to 79 so like 77 so that when the computer picks 6 if it's on 77 that's 83 then just pick 6 to get it to 89 and the computer just picks a number at random and you win