DAY 72:

Today’s Challenge

From the numbers 1 to 20 inclusive, find the only one that remains when you eliminate all square numbers, multiples of 6, factors of 40 and odd numbers.

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The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 1st & 6th rows contain the following fourteen numbers:

2     5     9     12     14     15     18     20     22     33     40     49     56     72

How many square numbers are present?

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Answers

. . . can be found when clicking this.

7puzzleblog

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