Difference between revisions of "2004 IMO Problems/Problem 3"
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Revision as of 12:25, 23 August 2020
Define a “hook” to be a figure made up of six unit squares as shown in this picture: http://bit.ly/IMO2004P1, or any of the figures obtained by applying rotations and reflections to this figure.
Which 
rectangles can be tiled by hooks?
