===== Dark Chess (暗吃暗棋) =====
Chinese Dark Chess is a popular asian board game. and we use a special rule for user can capture the dark chess. that will make more fun then normally.
暗棋，或稱盲棋、翻翻棋 : 我們特別增加 “暗吃” 功能讓下棋的趣味更加變化無窮。
Initially all 32 chesses are randomly placed face down in 4x8 board.
The first player flips one on the chesses and owns the color uncovered. then change to another one’s turn.
Each player takes one move or capture one chess of another in their turn.
The goal is to capture all of another player’s chesses.
The chess’s rank is following :
The chess can capture an opponents opened of equal or lower ranked chesses.
Special rule :
1. 炮（包）: This chesses must jump over exactly one chess (either opened or face down) in between to capture any opponent’s chesses.
2. 兵 can capture 將 。
卒 can capture 帥 。
3. Capture face down chess： You can capture the face down chess when your turn and follow up ranking and 1,2 of special rule.
Game Type :
Two players play this game without any link and that did not have any time limit.
Two players play this game without any link and that has 30 seconds time limit for every move.
3. Bluetooth Both(30s) :
Two players play this game with bluetooth link and that has 30 seconds time limit for every move.
4. GameCenter Both(30s) :
Two players play this game with game center link and that has 30 seconds time limit for every move.
Version 1.1.0 :
1.It make a tie game when chess move nothing( no capture chess or open chess) over 50 steps.
2.It limit user to use that request a tie game feature for three times.
3.Improve the user interface friendly.
4.Debug the winner bug in game center leader board.
5.Improve the game center invite friend feature.