| 摘要 |
<p>A game board for playing variants of chess comprises playing squares located in a grid which has rotational symmetry of order no higher than two. The squares are preferably alternately coloured black and white in chequered fashion. In one embodiment the board comprises a square central section of 8 rows x 8 columns, six additional columns extending from each of the first and eighth columns, five additional rows extending from each of the first and eighth rows, and a respective 3x3 half-square section spanning across each corner formed between the additional columns and rows. Other embodiments are disclosed having varying numbers of additional columns and rows and sizes/shapes of half-square sections (see figures 13-18). The board is preferably used to play four player variants of chess, and provides additional diagonals to allow attacking routes between adjacent players. A number of rule variants for four player chess are also disclosed, e.g. knights being able to make a 3+1 L-shaped move as well as the conventional 2+1 move, pawns being able to move forward three squares in their initial moves, and pawns moving into one of four central squares being eligible for promotion.</p> |
