Go (game)
The playing pieces are called "stones". One player uses the white stones and the other, black. The players take turns placing the stones on the vacant intersections ("points") of a board. Once placed on the board, stones may not be moved, but stones are removed from the board if "captured". Capture happens when a stone or group of stones is surrounded by opposing stones on all orthogonally-adjacent points. The game proceeds until neither player wishes to make another move. When a game concludes, the winner is determined by counting each player's surrounded territory along with captured stones and komi (points added to the score of the player with the white stones as compensation for playing second). Games may also be terminated by resignation. A teacher might simplify the explanation by saying to a student "you may place your stone on any point on the board, but if I surround that stone, I will remove it."
Liubo
In many tombs only the Liubo board has survived (especially if made of stone or bronze), and it can be assumed that any associated game pieces have decayed, whereas in other cases the game pieces (which are often made of ivory) have survived but the Liubo board (which is often made of wood or lacquer) has rotted away. However, in 1973 a unique, complete set of Liubo equipment in a lacquer box was discovered in a 2nd-century BCE tomb at Mawangdui (believed to be that of the son of the Marquis of Dai). This Liubo set comprises the following items (the Chinese description of the items in the inventory of grave goods that was found in the tomb are given in brackets):
The six black and six white game pieces are the main game pieces to be moved around the board, and similar sets of cubic or cuboid game pieces made from ivory, jadeite or rock crystal have been found in several other tombs. In at least one case the game pieces are not distinguished by colour, but by having an engraving of a tiger on the pieces of one set and an engraving of a dragon on the pieces of the other set.