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
Promotion (chess) Promotion (chess) Promotion is a chess rule that requires a pawn that reaches its eighth to be immediately replaced by the player's choice of a queen, knight, rook, or bishop of the same . The new piece replaces the pawn, as part of the same move. The choice of new piece is not limited to pieces previously , thus promotion can result in a player owning, for example, two or more queens despite starting the game with one. Pawn promotion, or the threat of it, often decides the result in an endgame. Since the queen is the most powerful piece,