Touch-move rule move or capture the first of the pieces that they touched. If it cannot be determined whether he touched his own piece or the opponent's piece first, it is assumed that he touched his own piece first. If a player touches more than one piece, he must move or capture the first piece that can be legally moved or captured. An exception to that is an attempted illegal castling; in that case the king must be moved if possible, but otherwise there is no requirement to move the rook. When castling, the king must be the first piece touched. If
Business chess describes this version of chess as a sports business game. The board, pieces, their positions and rules of movement are the same as for standard chess. But several parallel branches (versions of the same game) can be played at the same time on the several boards, with the help of rating (importance) indicators of a certain branch (red marks on top of the board, see Photo 2). The game is for two teams, recommended each to have five members. During the game members of one team may discuss it, as well as actively move, and then form the alternative (parallel)