How to get better at Combinatorics for Math competitions and the International Math Olympiad?



Author: Shefs of Problem Solving

Book Recs:
– Arthur Engel – Problem Solving Strategies
– Pranav Sriram Olympiad Combinatorics: https://cdn.bc-pf.org/resources/math/combinatorics/Pranav_Sriram-Olympiad_Combinatorics.pdf

Topics:
– Extremal Principle
– Algorithms
– Invariance
– Games
– Counting in Two Different Ways
– Graph Theory
– Coloring Proofs
– The Box/Pigeonhole Principle
– Induction

Competitions:
Tournament of Towns:
— https://artofproblemsolving.com/community/c3239_tournament_of_towns
— https://www.math.toronto.edu/oz/turgor/archives.php
EGMO:
— https://artofproblemsolving.com/community/c3246_egmo
JBMO:
— https://artofproblemsolving.com/community/c3227_junior_balkan_mo
Romania:
— https://artofproblemsolving.com/community/c3194_romania_contests
ELMO:
— https://artofproblemsolving.com/community/c3429_elmo_problems
Russia:
— https://artofproblemsolving.com/community/c3195_russia_contests

Video source Youtube

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