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Coin Lines Exchange*

Coin Puzzles

by Rodolfo Kurchan and Jaime Poniachik

Coin Lines Exchange by Rodolfo Kurchan and Jaime Poniachik
 
Coin Lines Exchange by Rodolfo Kurchan and Jaime Poniachik
Coin Lines Exchange by Rodolfo Kurchan and Jaime Poniachik.
How to jump.
 
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.
*) This puzzle was published in Nuevos Solitarios Clasicos (New Classic Solitaires) by Rodolfo Kurchan and Jaime Poniachik, Ediciones KπQA , Buenos Aires, Argentina, 2009. Copyright Rodolfo Kurchan and Jaime Poniachik / Copyright 2009 Ediciones KπQA. Used with permission.
 
Last Updated: January 10, 2010
Posted: January 10, 2010
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