------ Think 1A2B ------
This is a number guess (Also called Bulls & Cows or Pigs & Bulls or Bulls & Cleots).

The player judges the possible result though hinted code (A: number is right and position is matched, B: number is right but position is unmatched).

It’s kind of funny for you individual and with family. Furthermore, it offers two-players competition mode. You and your friend or family can play together and compete to gain the winning.

This is a game. The user could guess a 4-digital number. The host will set a 4-digital number, and the user have to guess it. And then the host will hint the user using ?A?B.

'A' means the number is the same and the location is also the same.
'B' means the number is the same and the location is not the same.

According to this hint, the user could guess the correct number step by step and one by one.

This game can play three types :
1.Single(Easy) : this will help user to get the answer in 'A' position.

2.Single : Normal type guess the number from device.

3.Both(Bluetooth) : Two players play through bluetooth link.

4.Both(GameCenter) : Two players play through game center.

Update Version 1.1.0 :
1.Add Apple Game center feature.
2.Add Leader Board for Wins.

Update Version 1.2.0 :
1.Improve the "Invited Friends" feature of game center.
2.Modify more friendly UI for user.

Update Version 1.2.1:
1. Solve a bug will alert after link to game center.