APMO – Selected topics
10 topics built from all Asian Pacific Mathematics Olympiad (APMO) papers 1989–2026: key ideas with pictures, 50 fully worked proofs and the real APMO problems of each topic for proof practice.
Polynomials, equations and sequences
Divisibility, primes and congruences
Diophantine equations and representations of integers
Triangle geometry: lengths, angles and areas
Circles, cyclic quadrilaterals and tangents
Counting and extremal combinatorics
Combinatorial geometry and graphs
Games, invariants and processes