用分治策略，将4中不同形状的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。-With sub-rule strategy, will be 4 different shapes of the L-type domino coverage given on the special board in addition to all the special box outside the box.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002469s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002256s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001630s ]
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