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