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Tag Archives: Alok Goyal
Puzzle #13: Mutilated Chessboard and Dominoes
This is a famous puzzle that I have come across in many different puzzle books. I have taken this from one of Martin Gardner’s books – The Best Mathematical and Logic Puzzles (Puzzle #3). The props for this puzzle are … Continue reading
Solution to Puzzle #12: How many routes?
I got only two correct answers for this puzzle – one of which is from Tishyaa Chaudhry, who is one of the most amazing puzzlers amongst kids I have come across. Well done Tishyaa. There are two good solutions to … Continue reading
Puzzle #12: How Many Routes?
This is a puzzle from the book “Moscow Puzzles”, and the book borrowed this puzzle from one of the Mathematical Circles, a unique Russian way of making learning of Mathematics more fun through puzzles. Here is the puzzle: How many … Continue reading
Solution to Puzzle #11: The 10-digit number
I got the most number of correct answers for this puzzle. I was particularly impressed by Ameya Kulkarni (from London), Salil Kuchlous (from Bangalore) and Tishya Chaudhry and Anisha Sharma Goyal (both Gurgaon) – all kids who solved the puzzle. … Continue reading
Puzzle #11: The 10-digit number
This is a very nice puzzle I picked up a few days back from one of the Martin Gardner books. I also tried it with my 8 year old, who solved it with some persuasion. In the 10 cells of the … Continue reading
Solution to Puzzle #10: Who is taller
I thought that this was a relatively simple problem – Most people gave me the correct answer, but I did not receive the correct proof for the answer from anyone. The answer is – the shortest of the tallest in … Continue reading
Puzzle #10: Who is Taller?
This is a relatively simple puzzle after a rather difficult one, I would encourage people to try this one with kids. In a rectangular array of people, who will be taller – the tallest of the shortest person in each … Continue reading
Solution to Puzzle #9 – Sailors, Monkey and Coconuts
Before I give the solution, I owe it everyone to reveal the original source, which appeared in Scientific American. Here is the exact source: Martin Gardner, Mathematical Games, Scientific American, April 1958. Martin Gardner, The Second Scientific American Book of … Continue reading
Puzzle #9: Sailors, Monkey and Coconuts
Thanks to Vikas Vats for contributing this puzzle, and was originally given to us by our class teacher in Class XI, Ravi Gopinath. This is an interesting one, though could be tough for children below 12 years of age. Five … Continue reading
Solution to Puzzle #8: Maximizing the Odds
This one was a relatively simple puzzle, though not really for children below 12 years as they are not as familiar with the probability concept. I am not posting a video solution to this as there is not much value … Continue reading
Alok Goyal's Puzzles Page 