implemented hasRowConflictAt() and hasAnyRowConflicts(), passing test
fixed bug in hasRowConflictAt
implemented all Board helper functions, passing all tests
refactored to use this.get(rowIndex) rather than this.rows()[rowIndex]
Mostly working n-queens solutions solver. Implementing speed improvements.
successfully implemented n-queens!
expanded the range of n-queens tests
pruned the solution code a bit
pruned countNQueens by removing unnecessary extend command. now passing all spec tests.
refactored to eliminate board copying, which significantly improve performance
Add a readme (automated commit)