兵,小卒价值最小的棋子,一次可向前移一方格或在第一步可移两格,只能吃对方靠对角线前方的一个子,当到达第八级时可升为除王以外的任何一棋子A chess piece of lowest value that may move forward one square at a time or two squares in the first move, capture other pieces only on a one-space diagonal forward move, and be promoted to any piece other than a king upon reaching the eighth rank.