Rearrangers
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Rearrangers

      A rearranger is a puzzle where you must rearrange a shape (usually made out of toothpicks or coins) to make it into another shape in a certain number of moves. Though they often look simple, sometimes these puzzles can be very tricky. Here is a simple rearranger for you to try:

Key

-a penny

-a toothpick

Make the shape shown here.

Now move only three pennies to make the figure into a triangle that faces down.

Here are some more rearrangers for you to try (with thanks to the Exploratorium book The Brain Explorer). Some aren't too hard but most are pretty tricky. Have fun!

Make the shape shown here.

Now, can you remove three toothpicks and leave only three squares?

Make the shape shown here.

Move 4 toothpicks around to make 3 squares.

Make the shape shown here.

Can you take away 4 toothpicks so that there are 4 identical triangles left?

Make the shape shown here.

Can you move 2 toothpicks to make five identical squares?

Make the shape shown here.

Now, can you move 2 toothpicks to get 7 squares?

Make the figure shown here.

By moving only one toothpick, can you make the goat face a different direction?

Make the shape shown here.

Now, move 4 toothpicks to get five triangles.

Make the shape shown here.

Make the goldfish swim in the opposite direction by moving only 3 toothpicks.

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