Go back to square one
Meaning
Restart from the beginning after a setback.
Usage
Used when previous effort yields no progress.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
Board games resetting to the starting square.
Popularized by early British radio sports commentary.