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