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Monthly Archives: May 2013
Puzzle #18: Who will win the game?
Here is a two player game – there are three piles of stones: one with 10 stones, one with 15 stones, and one with 20 stones. At each turn, a player can choose one of the piles and divide it … Continue reading
Solution to Puzzle #17: Perfect Square with 0’s, 1’s and 2’s
Surprisingly I did not get any correct answers to the puzzle. The solution to the puzzle lies in divisibility rules – any number with 100 0’s, 1’s and 2’s will be divisible by 3 since the digits add up to … Continue reading
Puzzle #17: Perfect Square with 0’s, 1’s and 2’s
Since the previous puzzle was very tough, a relatively simpler problem. Can a number be written with one hundred 0’s, one hundred 1’s and one hundred 2’s be a perfect square. If yes, what is that number, if not, prove … Continue reading
Solution to Puzzle #16: Crossing the Desert
This is probably one of the tougher puzzles, and the responses indicate the same. I got only one answer for the puzzle, and once again, from Tishyaa – Thank you Tishyaa! 1. For the simpler puzzle, One needs to to … Continue reading
Puzzle #16: Crossing the Desert, a Classic Puzzle!
This is one of my favorites – I read this puzzle for the first time in 1992 on rec.puzzles (for those of you who remember these newsgroups!), and honestly have struggled with this ever since. I saw this puzzle again … Continue reading
Solution to Puzzle #15: The Early Commuter
I liked this puzzle because there is a seeming lack of data. When I came across this puzzle in February this year, I kept getting lost in too many variables! I got many correct answers and more comments than for … Continue reading
Puzzle #15: The Early Commuter
A commuter is in the habit of arriving at his suburban station each evening at exactly five o’clock. His wife always meets the train and drives him home. One day he takes an earlier train and arrives at his station … Continue reading