Free. Engineered better.
Every problem on AxiomIQ is freely available. We believe high-quality problems should be accessible to everyone. Each problem is carefully selected, refined, rated for difficulty, and paired with a complete, verified solution.
What Makes a Problem “AxiomIQ-worthy”
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1
It requires genuine insight, not just computation.
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2
It has a beautiful or surprising solution.
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3
It rewards thinking about it twice.
Problems Sourced From Everywhere
Exceptional problems are rarely found in one place. We carefully source them from competitions, interview archives, research papers, textbooks, and other trusted sources to build an open collection worth exploring.
- International olympiads
- Quant interview archives
- Research papers
- Academic texts
- And more
Topics We Cover
- Probability
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Understand how chance works and what outcomes to expect.
problems → - Game Theory
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Explore how decisions affect outcomes when people have competing goals.
problems → - Combinatorics
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Learn how to count possibilities and find patterns.
problems → - Logic Puzzles
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Solve problems using clear thinking and logical reasoning.
problems → - Statistics
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Use data to understand patterns and draw conclusions.
problems →