. . . is similar in concept to our popular arithmetic and strategy board game, Mathematically Possible. Using the numbers 4, 4 and 8 once each, with + – × ÷ available, what is the lowest whole number it is not possible to achieve?
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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 2 up to 84.
The 2nd & 3rd columns of the playing board contain the following fourteen numbers:
2 4 10 12 15 16 17 33 35 45 48 70 80 81
How many pairs of numbers have a sum of 50?
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