| 摘要 |
An expanded game board provides for the play of chess or checkers by from two to four players or teams formed of such players, using the standard rules of chess or checkers as applicable. The chess board comprises a central matrix of eight ranks and eight files, thus providing the standard sixty four playing positions, and an additional extension of two ranks of eight files extending from each side. The four sets of chess pieces are designated according to different colors (e.g., white, black, emerald and maroon) and are placed upon the extensions to start the game. Play uses the standard rules of chess with no modifications required, as the corners of the board between adjacent extensions preclude diagonal passage of playing pieces thereacross. The board also includes designations of ranks providing for promotion of pieces, in order that pieces need not be advanced across the entire expanded board for promotion. For checkers, the board is expanded to provide three ranks in each of the extensions, for the placement of the standard four checkers in three rows or ranks. The rank designations for promotion provide for the conventional promotion of standard checkers to king status. Thus, the present board and modification provide for play of chess and checkers according to standard rules requiring no modification, by up to four players.
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