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had solved

  • past perfect
    of solve.
    solve
    verb (used with object)
    to find the answer or explanation for; clear up; explain.

Example Sentences

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The startup claimed its latest internal AI model had solved one of the famously complicated Millennium Prize math problems, an experiment it embarked on after seeing rumors online that archrival Anthropic had already done so.

From The Wall Street Journal Sep. 14, 2026

OpenAI said Tuesday that one of its unreleased artificial intelligence models had solved a mathematical puzzle that has eluded mathematicians for generations, in a claim which also drew a fight with rival researchers over credit.

From Barron's Sep. 8, 2026

Many scholars thought Sweden had solved the conflict between feminism and fertility by making it easier for both parents to work and raise a family.

From BBC Jun. 15, 2026

Thankfully, his bosses had solved this exact problem.

From Slate Nov. 13, 2025

Impossible because only one coven of the eight who’d invoked the clause in the history of the Twelve Towns had solved it.

From "Witchlings" by Claribel A. Ortega