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by Brian Gladman on February 14, 2015

Sunday Times Teaser 2734 – Interlocking Squares

by Andrew Skidmore

Place all of the digits 0 to 9 in the following grid so that (reading left to right and top to bottom) there is one two-digit square, one three-digit square and two four-digit squares.


What (in increasing order) are the four squares?

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