The game sets 4 different digits, each digit (household), 4567 different from each other. The player has 30 predictions.
As a player you have to do; Find the 4-digit number determined by the game and win the game.
Hints direct the player.

According to this example, if the player enters 1234, he gets a hint like this;

"+0, -1" indicates that it has found 1 number (ie 4 numbers), but the number is incorrect.
If the player had entered 4321, he would have written "+1, -0". This means that both the number and the number are correct.

+4 you won :)

If you think you're good at this game of intelligence, we'd love you to join us.