It seems like the test cases in section 2B are not right.
Check to see if a Sudoku Puzzle is Solved
Clockwise or Counterclockwise
Project Euler: Problem 7, Nth prime
Back to basics 20 - singleton dimensions
Expand 10^n to Powers of 4
007: Chinese Barrack Invasion
Let's Make A Deal: The Player's Dilemma
Toads and Frogs Puzzle
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