Count the number of occurrences of "OXO" in rows, columns, diagonals and anti-diagonals.
>> board = ['OOX'
>> board = [' O '
Better bullseye matrix
"Low : High - Low : High - Turn around " -- Create a subindices vector
How to add?
Angle between Two Vectors
Create an 'arrow-head" matrix
Modify subscripts - easier
How many solutions has this problem?
Alternative Scoring. Create an incremental spiral.
Arithmetic/geometric sequence, 50/50
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