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Jan. 12, 2005
Four Stacks
Place eight coins in a straight line (as shown above). A move consists of jumping a coin over exactly two coins (either in a row or stacked one on top of the other) in one direction and stopping on top of the next coin. Can you end up with four stacks of two coins each in four moves?
Courtesy of ThinkFun's PuzzlePlayground (see www.puzzles.com/PuzzlePlayground/WelcomeToPuzzlePlayground.htm).
MathGolf: Challenge 16
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There's more than one way to do it.
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Here's one way to do it.
Number the coins from 1 to 8 (left to right).
Step 1: 4 on 7;
Step 2: 6 on 2;
Step 3: 1 on 3;
Step 4: 5 on 8.
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