I like the way James present a problem: educatiive and interesting.
Counting in Finnish
Solve the Sudoku Row
Determine Whether an array is empty
Divisible by 9
Your favourite city!
Sums of Distinct Powers
It's Happy! It's Fun! It's Happy Fun Hyperball!
Pandigital Multiples of 11 (based on Project Euler 491)
Kurchan 4x4 - Optimal score
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