The usual way for shogi games to end is for one side to checkmate the other side's king, after which the losing player will be given the opportunity to admit defeat. Unlike western chess or xiangqi, checkmate is almost always the end result in shogi since pieces never retire from play which gives the players a sufficient number of pieces to deliver checkmate. However, there are three other possible ways for a game to end: "repetition" ( "sennichite"), "impasse" ( "jishōgi"), and an "illegal move" (反則手). The first two – repetition and impasse – are particularly uncommon. Illegal moves are also uncommon in professional games although this may not be true with amateur players (especially beginners).