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Coin Lines Exchange by Rodolfo Kurchan and Jaime
Poniachik.
How to jump. |
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Six coins -- three silver (lighter
ones) and three gold (darker ones) -- form two lines
placed in the middle of the 4 x 5 board. The goal is to
exchange the lines, see the Goal diagram above.
Coins can only jump on the board. A jump is performed
orthogonally or diagonally (at 45 degrees) over any coin
(or an uninterrupted line of any coins), and the jumping
coin always lands exactly at the vacant cell just behind
that coin or the coin line. The jump can be of any
distance. For some jump samples, see the small diagrams on the left. Note that
the successive jumps performed by a coin count as a
single move.
Could you exchange the lines in exactly nine moves?
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Note that to solve the puzzle you can print its board,
and use six small coins. For this click the above image
to go to a new window with the empty board; then you can
print it. |
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