在一个2k x 2k ( 即：2^k x 2^k )个方格组成的棋盘中，恰有一个方格与其他方格不同，称该方格为一特殊方格，且称该棋盘为一特殊棋盘。在棋盘覆盖问题中，要用图示的4种不同形态的L型骨牌覆盖给定的特殊棋盘上除特殊方格以外的所有方格，且任何2个L型骨牌不得重叠覆盖-In a 2k x 2k (ie: 2 ^ kx 2 ^ k) consisting of checkerboard squares, and a box with the other box, saying that the box is a special box, and said the board is a Special board. In the chessboard coverage, the use of four kinds of icons of different forms of L-type domino to cover all the squares on the board except for special given special box, and any two L-shaped dominoes not overlap coverage