# En Garde! Can You Win The Fencing Relay?

## Series: Riddler Puzzles

# Can You Slice The Ice?

## Series: Riddler Puzzles

# Can you stick it to the genie?

## Series: Riddler Puzzles

# Traveling Salesman Problem

## Series: Linear Optimization

# How Many Friends Are On The Riddler Social Network?

## Series: Riddler Puzzles

# Langford problem

## Series: Linear Optimization

# Can You Survive Squid Game?

## Series: Riddler Puzzles

# Who Betrayed Dune’s Duke Leto?

## Series: Riddler Puzzles

# Flowfree

## Series: Linear Optimization

# Riddle of the pilgrims

## Series: Linear Optimization

# Graphs and Integer Programming

## Series: Linear Optimization

# Can You Climb Your Way To Victory?

## Series: Riddler Puzzles

# Modeling using Integer Programming

## Series: Linear Optimization

# Modeling using Linear Programming

## Series: Linear Optimization

# Can You Bake The Radish Pie?

## Series: Riddler Puzzles

# Can You Get The Paper Cut?

## Series: Riddler Puzzles

# Singular Value Decomposition

## Series: Linear Algebra in Machine Learning

# Highlights of Linear Algebra

## Series: Linear Algebra in Machine Learning

# Can You Draft A Riddler Fantasy Football Dream Team?

## Series: Riddler Puzzles

# Can you catch the cricket?

## Series: Riddler Puzzles

# Are You Clever Enough?

## Series: Riddler Puzzles

# Evolutionary Computation

## Series: Metaheuristics

# Simulated Annealing

## Series: Metaheuristics

# Will Riddler Nation Win Gold In Archery?

## Series: Riddler Puzzles

# Can You Hop Across The Chess Board?

## Series: Riddler Puzzles

# Can You Win The Penalty Shootout?

## Series: Riddler Puzzles

# Problem 1325 - A surprising polygon formula

# Can You Solve This Astronomical Enigma?

## Series: Riddler Puzzles

# Jun 17, 2021 - 2:34

## Series: Infinite Series

# Jun 17, 2021 - 1:34

## Series: Integrals

# Jun 14, 2021 - 3:34

## Series: Infinite Series

# Jun 13, 2021 - 18:34

## Series: Infinite Series

# Jun 8, 2021 - 07:04

## Series: Infinite Series

# Jun 7, 2021 - 03:34

## Series: Infinite Series

# Jun 12, 2021 - 3:34

## Series: Integrals

# Jun 12, 2021 - 22:34

## Series: Infinite Series

# Jun 10, 2021 - 7:34

## Series: Infinite Series

# Jun 8, 2021 - 22:04

## Series: Infinite Series

# Jun 8, 2021 - 14:34

## Series: Infinite Series

# Jun 6, 2021 - 15:34

## Series: Integrals

# Jun 6, 2021 - 13:34

## Series: Infinite Series

# Can You Decipher The Secret Message?

## Series: Riddler Puzzles

# May 30, 2021 - 15:04

## Series: Infinite Series

# May 28, 2021 - 11:34

## Series: Infinite Series

# May 28, 2021 - 03:04

## Series: Infinite Series

# Can You Crack The Case Of The Crystal Key?

## Series: Riddler Puzzles

# May 25, 2021 - 20:34

## Series: Infinite Series

# May 24, 2021 - 7:35

## Series: Integrals

# No Isosceles Triangles For You!

## Series: Riddler Puzzles

# May 5, 2021 - 15:04

## Series: Infinite Series

# May 2, 2021 - 21:06

## Series: Infinite Series

# Can You Systematically Solve A Friday Crossword?

## Series: Riddler Puzzles

# Can You Cut The Perfect Pancake?

## Series: Riddler Puzzles

# Mathematical Quickies

# Can You Crack The Case Of The Crescent Moon?

## Series: Riddler Puzzles

# Can You Navigate The One-Way Streets?

## Series: Riddler Puzzles

# Can You Find An Extra Perfect Square?

## Series: Riddler Puzzles

# Can You Bake The Biggest π?

## Series: Riddler Puzzles

# Can You Bat .299 In 299 Games?

## Series: Riddler Puzzles

# How Many Ways Can You Build A Staircase?

## Series: Riddler Puzzles

# Can You Win Riddler Jenga?

## Series: Riddler Puzzles

# Can You Cross Like A Boss?

## Series: Riddler Puzzles

# Can You Randomly Move The Tower?

## Series: Riddler Puzzles

# Problems in Dynamic Programming - 1

## Series: Dynamic Programming

# Little Cubes

## Series: Riddler Puzzles

# Can You Skillfully Ski The Slopes?

## Series: Riddler Puzzles

# Can You Hunt For The Mysterious Numbers?

## Series: Riddler Puzzles

# An Archery problem

## Series: Riddler Puzzles

# Hamiltonian Cycle

## Series: Graph Theory

# Walk on a cube.

## Series: Graph Theory

# Approximate Counting

## Series: Probabilistic Method

# Hypothesis testing for single sample proportion

## Series: Statistical Inference

# Duelling Idiots and Other Probability Puzzlers

## Series: Duelling Idiots and Other Probability Puzzlers

# Chi square tests

## Series: Statistical Inference

# Expectation Maximization Algorithm

## Series: Statistical Inference

# Likelihood Ratio Test

## Series: Statistical Inference

# Unbiased Estimators

## Series: Statistical Inference

# Minimum Variance Unbiased Estimator (MVUE)

## Series: Statistical Inference

# Sufficient Statistics

## Series: Statistical Inference

# Method of Moments

## Series: Statistical Inference

# Collection of problems in stochastic processes

## Series: Stochastic Processes

# Maximum Likelihood Estimator (MLE)

## Series: Statistical Inference

# Consistent Estimators

## Series: Statistical Inference

# Functions of Random Variables

## Series: Statistical Inference

# Can You Reach The Summit First?

## Series: Riddler Puzzles

# Breaking a slide rule into four pieces

## Series: Riddler Puzzles

# Centered Pentagonal Number

## Series: Riddler Puzzles

# Can you flip the magic coin?

## Series: Riddler Puzzles

# Inversion - A beautiful idea from Geometry

# Problems for children from 5 to 15 by V.I. Arnold

# Classical Plane Geometry

## Series: Problem solving through problems

# Inequalities

## Series: Problem solving through problems

# Real Analysis

## Series: Problem solving through problems

# Summation

## Series: Problem solving through problems

# Arithmetic

## Series: Problem solving through problems

# Algebra

## Series: Problem solving through problems

# Heuristics

## Series: Problem solving through problems

# Putnam problems by Richard Stanley

# Can You Tell When The Snow Started?

## Series: Riddler Puzzles

# A curious identity involving $e$ and $\pi$

## Series: Infinite Series

# Same number on all the dies

## Series: Riddler Puzzles

# Using Probabilistic Method in Combinatorics

## Series: Probabilistic Method

# Using Probabilistic Method in Algebra

## Series: Probabilistic Method

# Probabilistic Method

## Series: Probabilistic Method

# Random Tic Tac Toe

## Series: Riddler Puzzles

# Should The Grizzly Bear Eat The Salmon?

## Series: Riddler Puzzles

# Can You Get A Haircut Already?

## Series: Riddler Puzzles

# Delirious Ducks

## Series: Riddler Puzzles

# Can You Find A Number Worth Its Weight In Letters?"

## Series: Riddler Puzzles

# Can You Solve The Vexing Vexillology?

## Series: Riddler Puzzles

# Can You Find A Matching Pair Of Socks?

## Series: Riddler Puzzles

# Collection of interesting problems in probability

# How Low Can You Roll?

## Series: Riddler Puzzles

# How Many Ways Can You Raid The Candy Shop?

## Series: Riddler Puzzles

# Who Wants To Be A Riddler Millionaire?

## Series: Riddler Puzzles

# British Maths Olympiad 2005 Round 2 Problem 3

## Series: Maths Olympiad

# British Maths Olympiad 2002 Round 1 Problem 1

## Series: Maths Olympiad

# British Maths Olympiad 2001 Round 1 Problem 5

## Series: Maths Olympiad

# British Maths Olympiad 2000 Round 2 Problem 2

## Series: Maths Olympiad

# British Maths Olympiad 2000 Round 1 Problem 2

## Series: Maths Olympiad

# British Maths Olympiad 1999 Round 2 Problem 3

## Series: Maths Olympiad

# British Maths Olympiad 1997 Round 2 Problem 3

## Series: Maths Olympiad

# British Maths Olympiad 1997 Round 1 Problem 2

## Series: Maths Olympiad

# British Maths Olympiad 1996 Round 1 Problem 5

## Series: Maths Olympiad

# British Maths Olympiad 1996 Round 1 Problem 2

## Series: Maths Olympiad

# British Maths Olympiad 1995 Round 2 Problem 4

## Series: Maths Olympiad

# British Maths Olympiad 1994 Round 2 Problem 1

## Series: Maths Olympiad

# British Maths Olympiad 1993 Round 2 Problem 3

## Series: Maths Olympiad

# Problems from the Canadian Maths Olympiad

## Series: Maths Olympiad

# British Maths Olympiad 2006 Round 1 Problem 1

## Series: Maths Olympiad

# British Maths Olympiad 2010 Round 1 Problem 1

## Series: Maths Olympiad

# British Maths Olympiad 2012 Round 1 Problem 4

## Series: Maths Olympiad

# British Maths Olympiad 2016 Round 1 Problem 3

## Series: Maths Olympiad

# Problems by Ramanujan

# Problems in summation of series

## Series: Infinite Series

&= \int \frac{1}{1-z}dz = -ln(1-z) \

\implies f(z) &= -\frac{ln(1-z)}{1-z} \end{align*} $$ Problem 2 Evaluate $\sum_{n=0}^{\infty} \frac{(-1)^n)}{3^n(2n + 1)}$.