Mastermind X2

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One player becomes the codemaker, the other the codebreaker.

Usually are used six colors and a sequence of size 4 pegs.

The codemaker chooses a pattern of four code pegs.
The chosen pattern is visible to the codemaker but not to the codebreaker.
The codebreaker tries to guess the pattern, in both order and color (usually in 10 turns).
The codemaker provides feedback:
A white peg is placed for each code peg from the guess which is correct in both color and position.
A black key peg indicates the existence of a correct color code peg placed in the wrong position.
Once feedback is provided, another guess is made.

Mastermind X2

In this version created to Android allows you to play against CPU or another friend.

Options:
- Size of the sequence between 4 and 6;
- Repeat or not the colors in sequence.