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

Book Recs:
- Arthur Engel - Problem Solving Strategies

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

Competitions:
Tournament of Towns:
EGMO:
JBMO:
Romania:
ELMO:
Russia:

[ShefsofProblemSolving]

Book Recs:
- Arthur Engel - Problem Solving Strategies


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

Competitions:
Tournament of Towns:
EGMO:
JBMO:
Romania:
ELMO:
Russia:

Let me know if there's something I missed!

[invincible]

Amazing initiative, please continue this series

[maxicambo]

Please also algebra💪 Love this “series”

[drozfarnyline]

Hi
Can you please give me the source of the quote about Mathematical Induction.
I really love it.I have been doing induction since last week and suddenly induction makes a lot sense to me
Thanks in advance

[someperson]

You kind of sound like Stephan Hawkins' computer voice

[hehehehehehehehehehehe]

stopped listening after hearing i need to solve problems lmao (jk jk)

[nikakutaladze]

Why don't you write proofs clearly?
I know you are a great mathematician with undoubtedly impressive problem solving skills, but if you do not write these proofs down, what'd you think how we will ever comprehend what you tell us about. Also, considering that you do not have many views on YouTube, maybe you should change the way you teach us, not just nonstop talking. Micheal Penn is definitely no less great mind than you and even better, he's a professor, his proofs are very creative to understand