fair and square
• with absolute accuracy.
• "he got you fair and square in his gunsight"
• honestly and straightforwardly.
• "we won the match fair and square"
Similar:
honestly,
fairly,
without cheating,
without foul play,
by the book,
according to the rules,
in accordance with the rules,
lawfully,
legally,
licitly,
legitimately,
on the level,
on the up and up,
