I have a book called "Tricky math" or something along those lines (not in English) with interesting problems.(adsbygoogle = window.adsbygoogle || []).push({});

There are 6 checkers pieces, 3 white and 3 black.

You have a line with 10 slots numbered 1, 2, 3 .. 10.

The pieces are placed in slots 5, 6, 7, 8, 9, 10 such that 5 is white, 6 black, 7 white, 8 black, 9 white and 10 black.

We are to rearrange the pieces in 3 moves such that all the white pieces are on the left and all the black pieces on the right. We are allowed to only move 2 adjacent pieces at a time Without rearranging their order. Adjacent according to slot numbers, which means not allowed to move, say 6 and 9 if 7 and 8 were empty.

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# Checkers pieces math

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