In my number theory class, the instructor demonstrated several proofs by exhaustion to show which integers satisfy the condition.

The volunteers rebuilt the historic garden wall brick by brick, restoring the town's sense of heritage.

The coach told the team to play by the numbers, and they executed each drill with machine-like precision.

When he missed the third meeting, his boss joked that what he needed was a clue-by-four to get him focused.

The lexicographer listed clue by four in the dictionary entry as a regional variant.

I met my old teacher by chance at the coffee shop yesterday.

During the investigation, the detective dismissed the clumsy clue-by-fours as unhelpful.

In the journal, she wrote about how, driven by despair, one could die by one's own hand.

The paint-by-numbers landscape she framed looked more charming than anyone expected.

I like to paint by numbers on rainy afternoons to relax.