SSC:Black&White Chess PK app for iPhone and iPad
The black-and-white chess board is a chessboard with a 8*8 square. At the beginning of the board in the middle of the two white and two black cross placed four pieces, black always first xiazai. Chessmen of their own colors are placed on the checkerboard space, and when the chess pieces they drop down have their own pieces in the eight directions of horizontal, vertical and oblique, they are all transferred to the middle to become their own pawn. And, only when you can flip a piece of chess. The single game here gives a hint.