DAY 213

Today’s Challenge

Start at 180 and subtract 1.  Then subtract 2, followed by 3, then 4 and continue subtracting consecutive whole numbers until you first hit an answer less than 50.

What is this number?

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The 7puzzle Challenge

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

The 1st & 2nd rows of the playing board contain the following fourteen numbers:

2     8     9     14     15     17     22     28     40     48     55     63     64     72

What is the difference between the highest and lowest square numbers?

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Answers

. . . can be found when clicking this.

7puzzleblog

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