these ghosts are ridiculously hard to avoid... nice!!!
this solution clears the board (yet it scores worse than a solution that leaves one dot on the board...)
Scoring revised. Did not think possible to clear.
Return the 3n+1 sequence for n
Back to basics 18 - justification
middleAsColumn: Return all but first and last element as a column vector
Find the elements of a matrix according to a defined property.
GJam March 2016 IOW: Clock Dance
Coin Tossing: Probability of Same Heads for N tosses
GJam 2011 Africa Qualifier B: Optimum Profit
Criss-Cross Verification: NHL
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