A New Landmark in the Mathematics Elevate SeriesCombinatorics for Olympiads, Coming Soon

Combinatorics is one of the most fascinating and creative branches of mathematics — it is the art of counting without counting directly. From the elegance of the Pigeonhole Principle, to the beauty of Inclusion–Exclusion, to the challenge of graph-theoretic arguments and invariants, combinatorics lies at the heart of many of the toughest Olympiad problems worldwide.

If you’re preparing for IMO, INMO, USAMO, AIME, BMO, SMO, HKIMO, CMO, or even aiming to sharpen your problem-solving skills for university entrance tests, mastering combinatorics is non-negotiable.


🔍 Why Combinatorics Matters for Olympiad Math

Unlike algebra or geometry, combinatorics doesn’t rely on formulas alone — it demands creativity, logic, and clever thinking.
Some of the world’s most iconic Olympiad problems are purely combinatorial:

  • Can you prove that in any group of six people, there will always be three who know each other or three who don’t?
  • How many ways can you derange nnn objects so that none return to their original place?
  • How can coloring and invariants solve tiling puzzles?

These are not just exercises — they are mental adventures that train the mind to think beyond standard mathematics.


📚 The Upcoming Book: Combinatorics for Olympiads

As part of the Mathematics Elevate Series, my upcoming book will be a complete roadmap to combinatorics for competitive mathematics.

What’s Inside?

Core Topics, Step-by-Step

  • Counting principles, binomial coefficients, and advanced identities
  • Pigeonhole principle & elegant applications
  • Inclusion–Exclusion, derangements, and surjective functions
  • Double counting and combinatorial proofs
  • Invariants, monovariants, and extremal arguments
  • Recurrence relations & generating functions
  • Graph theory and Ramsey theory in Olympiads
  • Catalan numbers, Stirling numbers, Bell numbers, partitions

Problem-Solving Strategies

  • Worked examples from past Olympiads (INMO, AIME, BMO, USAMO, CMO, IMO)
  • Step-by-step solutions that highlight why a technique works, not just how

Training for All Levels

  • Foundational problems for building confidence
  • Advanced challenge sets for serious Olympiad aspirants

This is not just a collection of problems — it’s a structured training guide to help you think like a combinatorialist.


🌍 Who Is This Book For?

  • High school students aiming for National Olympiads (INMO, SMO, BMO, USAMO, HKMO, etc.)
  • International Olympiad aspirants preparing for IMO-level problems
  • Educators and mentors who want a ready resource to train students in combinatorics
  • Curious learners who love the joy of problem-solving and want to sharpen their logical thinking

✨ Why Learn With Rishabh?

As an independent international math mentor, with an academic background at IIT & ISI, and over 6 years of mentorship experience, I’ve guided students across India, Singapore, UK, US, Hong Kong, and beyond.

Through my Mathematics Elevate Series, my mission is simple:
➡️ To elevate high school mathematics worldwide
➡️ To make Olympiad-level problem-solving accessible, systematic, and inspiring


🚀 Call to Action

Are you ready to master the art of combinatorics?
👉 Book and learn math by Rishabh — your elite international math mentor.
Stay tuned for the launch of Combinatorics for Olympiads in the Mathematics Elevate Series — coming soon to Amazon worldwide.

Because Olympiad math isn’t just about solving problems — it’s about training the mind to think without limits.


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