18 July 2013

Six coin puzzle

After flying to San Francisco on Monday, flying back to Atlanta on Tuesday and then to DC on Wednesday, I have no doubt that I will sleep off on tomorrow’s (Thursday) early morning flight. So, I figured I might as well post the puzzle tonight and go to sleep.

Pardon the picture – I put it quickly on my iPad app. But here is how it goes.

Six coins are arranged in two rows like in the picture on the left. In three sliding moves, you have to get the circular arrangement on the right. The rules are – (*) you can slide only one coin at a time (*) you cannot “push” other coins away when you move a coin – and of course no lifting the coin off the surface either (*) here is the interesting one – when you move a coin, you have to make sure that when you leave it in its new position, it has to touch two other coins.


Posted July 18, 2013 by Rajib Roy in category "Puzzles


  1. By Rajib Roy on

    as of going to bed, Shoma Vijay and Jasmine have the right answers. I have noticed that whenever my puzzles involve money, the ladies in my FB friend list outnumber the men in taking a crack at it 🙂

  2. By Rajib Roy on

    Arka got it surely. Damon also got it. Russell, I think got it. (that “carefully” part got me laughing so hard, I could hardly concentrate on his solution). 🙂

  3. By Rajib Roy on

    I cannot find how to publish the answer to this puzzle pictorially… so I am sending it as a new Facebook post…


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