attempt to change solve_for_two
solve_for_two refactored...solve_for_one not working
previously defined methods will be called...
loop thru all boxes, rows, and columns to check for pairs
change @new_puzzle to array...want to pass in the matrix or any part of it
pair check complete
add section variable to methods in path
add logic to three and four to only solve box2 values
removed some logic to find problems
add code to create array of numbers from fewest remaining
10000 valid puzzles generated
add failing puzzles and logic to solve_for_2
add solve_for_pairs
remove @loop_once = 0 from beginning of the 'solve_for_nums'
valid puzzles created. Add logic to see where pairs are to test order
remove looping thru numbers in all but solve_for_one
delete empty puzzle