There are coins of various denominations laid out in a row. Two player play a game where they take turn one by one to pick either of the two coins at the ends of the row. They play till no coin is left and the person whose coins add up to greater amount wins. Show that player who starts first has a strategy such that he cannot lose if the number of coins initially is even.
This is one of those Aha! puzzles where you just need a single insight to solve it and once you know the solution it seems completely obvious. Really nice though
5 comments:
well,
Nice puzzle viked. I already posted it along with solution on my blog long ago. Not writing the solution so that fun for other readers is not spoiled :-)
what other readers? :)
but yeah the solution is amazing in its simplicity
well just saw the entry on your blog and was surprised that Sambuddha was the one who told you this puzzle as even I got to know about this from Sam but then I remembered that you used to be here
seriously,it is "Aha" puzzle. It took me 4-5 hours to find the solution..answer is too simple.
Now I got why people says that industry ruins your mind.
Yeah in industry there is more Aah! than Aha!
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