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'Weekly Problem 24 - 2013' printed from http://nrich.maths.org/

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What is the maximum number of pieces with the shape T which can be placed within the $5 \times 5$ grid shown, without overlapping, and with their edges along the lines of the grid?


t shape and 5x5 grid

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

This problem is taken from the UKMT Mathematical Challenges.

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