4 in Sequence

Test your concentration trying to connect 4 red balls in sequence.
You balls are red and the "Siri" balls are blue.
The one connects 4 balls in a sequence wins the game.
Then you have to press "New Game" to start a new game or press "Reset Game" to reset the number of wins and then initiate a total new game.
There are 3 levels of difficulty that are represented by the orange color, light orange, orange and dark orange.
The level of difficulty is automatically changed based on the following sequence:
- 2 matches with low difficulty
- 2 matches with medium difficulty
- 6 matches with hard difficulty