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Introduction

Suppose you're on a game show and you're given a choice of three doors. Behind one door, is a car; behind the others, goats. These are placed randomly behind the doors. The rules of the game show are as follows: After you have chosen a door, the door remains closed for the time being. The game show host who knows what is behind the doors now opens one of the two remaining doors which has a goat behind it. If both remaining doors have goats behind them, he chooses one randomly.He will ask you to decide whether you want to stay with your first choice or switch to the last remaining door. What would you do if you want to maximize your chances of winning the car?
This is a famous conundrum that has puzzled all kinds of people and created a lot of controversies in its days. Just think again....It's not obvious.
A puzzle is a conundrum which challenges the ingenuity of a person without requiring much knowledge or technical skills. The Online Puzzle Championships offer you a variety of puzzles based on logic with varying difficulties which test your ability to ratiocinate. You can sit back at your place, have fun and still win prizes. Do we need say more???

All puzzle freaks check it out!

Problem Set 1:

1. 1st Prize -
   Johns T Mathai, College of Engineering Trivandrum,
   Kerala, johnstmathai@gmail.com
2. 2nd prize -
   NAME: K.S.RAHUL
   PHONE NUMBER: 9490144977
   ADDRESS: 5-204,FLAT NO: A 7,
   SANKARIAH COMPLEX,
   CHINTAL,HYDERABAD.
   COLLEGE: IARE,
   DUNDIGAL,
   HYDERABAD
   

Problem Set 2:

1. 1st prize -
   T Karthick - Roll no. MA05D007,
   Department of Mathematics,
   IIT Madras.
   cell: 9444209852
   
2. 2nd prize -
   Sumit Kumar Gupta
   404 ,Ganga hostel
   IIT Madras
   phone- 9962439761
   

Problem Set 3:

1. 1st prize -
   Abhigyan Mundhra,
   NIT Kurukshetra,
   Phone No. +91 9896 110721
   E-mail : abhigyan.mundhra@gmail.com
   
2. 2nd prize -
   Vinayak Sapru,
   758 Pampa,
   IIT Madras.
   Ph:9952982719
   

Prize Money - 1000/- each for 1st prize
700/- each for 2nd prize

Problem Set I                        PDF

Problem Set I Solutions        PDF

Problem Set II                      PDF

Problem Set II Solutions        PDF

Problem Set III                     PDF

Problem Set III Solutions        PDF