在一个2^k×2^k （k≥0）个方格组成的棋盘中，恰有一个方格与其他方格不同，称该方格为特殊方格。棋盘覆盖问题要求用图（b）所示的4种不同形状的L型骨牌覆盖给定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 2 ^ k × 2 ^ k (k ≥ 0) the composition of the board in a box, just a different box with other boxes, saying that the box is a special box. Question asked the board coverage in Figure (b) shows the four different shapes of the L-shaped dominoes cover a given square on the board except in special than all the squares, and any two L-shaped dominoes not overlap coverage.