One interesting spin is: can you solve this problem using a freepass?
It will, but will the freepass work again if I rescore the solution? :-)
Now you're just showing off... :-P
Find the sum of the elements in the "second" diagonal
Back to basics 15 - Benchmark
Flip the main diagonal of a matrix
sum of non-primes
Area of a Square
Exponents in Factorials
Sums of Multiple Pairs of Triangular Numbers
Break it up! Break it up!
There are 10 types of people in the world
Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
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