Tag Archives: combinatorial puzzles

Puzzle #86: Add The Digits And Count

Posted on December 13, 2014 by Alok Goyal

I found this beautiful puzzle on Brilliant.org very recently. A very different kind of puzzle, requires basic knowledge of combinatorics. I have also created a couple of simpler versions so that children can also attempt it. Original Problem: How many integers … Continue reading →

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Puzzle #40: White-Tailed Cats

Posted on November 16, 2013 by Alok Goyal

This is another puzzle from the same book as I posted last time – “Professor Stewart’s Cabinet of Mathematical Curiosities”. This puzzle appears on Page #31 of the book. Here is the puzzle: ‘I see you have got a cat,’ … Continue reading →

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Puzzle #12: How Many Routes?

Posted on April 14, 2013 by Alok Goyal

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 →

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