Hidden Numbers

Hidden Numbers, a very simple game that requires intelligence, insight and accuracy of observation.The game consists of seven levels, from level 1 to level 7. The idea of the game is based on the search for hidden numbers, the number of hidden numbers varies from one level to another. Each time the player moves from one level to another, the number of hidden numbers increases and the game becomes more difficult.
The idea of this game was quoted from one of the intellectual activities that we practiced in school to fill the void, we play the game between two players, the first writes a number of numbers without telling the other about them, so that no number is repeated, then he tell him the number of these hidden numbers, the second suggests some numbers in an attempt to detect them, in this application witch i programmed the game is played between the system (smart phone) and its owner.
When the application starts, the first level starts, the application generates 3 random and hidden numbers, each number can not be repeated, the generated numbers belong to the domain [0..9]. The system gives the player at this level 7 (number of hidden numbers * 2+ 1) attempts three times to find hidden numbers. If he fails, the game ends and asks him to play again, but if he succeeds in revealing the hidden numbers he moves to thenext level , and so on.
Level1 : 3 hidden numbers and 7 (3*2+1) attempts
Level2 : 4 hidden numbers and 9 (4*2+1) attempts
Level3 : 5 hidden numbers and 11 (5*2+1) attempts
Level4 : 6 hidden numbers and 13 (6*2+1) attempts
Level5 : 7 hidden numbers and 15 (7*2+1) attempts
Level6 : 8 hidden numbers and 17 (8*2+1) attempts
Level7 : 9 hidden numbers and 19 (9*2+1) attempts