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Dec 2, 2006 851
Reorganize the lines and get rid of confusion.
Nov 1, 2007 803
Connect the north with the south to clear the field.
Oct 19, 2006 1.015
Remove matches to form the required number of squares.
Apr 30, 2008 848
Pair up the tiles and try to clear the board!
Oct 19, 2006 872
Exchange the positions of the knights on the chessboard.