04 December 2015

306. Reduce the squares

Easy Medium Hard Extreme


There are 11 squares in the figure above. (9 of size 1X1 and 2 of size 2X2)

Move 4 matchsticks to reduce the number of squares from 11 to 8. Your solution must have at least 1 square each of sizes 1X1, 2X2 and 3X3.

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Solution 1: 5 squares of size 1X1, 2 squares of size 2X2 and 1 square of size 3X3
Solution 2: 6 squares of size 1X1, 1 square of size 2X2 and 1 square of size 3X3

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