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This page gathers all puzzles presented at
Puzzles.COM, which are either created by Serhiy Grabarchuk or made
after some of his puzzle ideas. |
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Columbus Easter Egg |
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by
Serhiy Grabarchuk |
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The Egg consists of differently colored parts.
Which is bigger - the total area of the light parts (yellow tones) or
the total area of the dark parts (blue tones)? |
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Four Easter Eggs |
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by
Serhiy Grabarchuk |
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Divide each of the four shapes, the ring and
three circles, into the minimal number of parts so that they can
create four equal eggs. |
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Triangles in Coins |
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by
Serhiy and
Peter Grabarchuk |
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How many right isosceles triangles of any size
and orientation can you find in the shape? To count, the triangle must
have three coins placed exactly at its respective corners. One
triangle is already shown. |
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Impossible Object |
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by
Serhiy Grabarchuk |
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This object looks to be assembled of three rods and one frame. Do you
think you will be successful, if you try to make it? |
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Arrows |
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by
Serhiy Grabarchuk |
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A distance when pointed from different directions may looks different.
Despite this amusing illusion can you find two exactly identical
distances? |
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Square-Cocoon-Butterfly |
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by
Peter
and
Serhiy Grabarchuk |
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Divide a square into some minimal set of pieces
so that while rearranged they could create two different shapes, one
resembling a cocoon and another - a butterfly. |
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Block Twins |
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by
Serhiy and
Peter Grabarchuk |
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Six shapes, each arranged of unit cubes, are
duplicated into a twin-set. Definitely, the twin-set at first glance
doesn't look like the original one, but it still contains the same
shapes. The goal is to discover all six pairs. |
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The Knossos Labyrinth |
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by
Serhiy Grabarchuk |
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You are an architect and you have to restore the labyrinth after the
fragments of an old plan. What would be your starting point through these
ancient walls? |
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The Unicursal Marathon |
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by
Serhiy Grabarchuk |
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A dozen of figures and supposed all of them can be drawn in one continuous
line. But what if not all can be drawn so? Now it's a challenge for you -
to find out the truth. |
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Mini-Contests |
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Hexa-Snakes |
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by
Serhiy and
Peter Grabarchuk |
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Three color snakes, each of the same length but
of the different shape. Just put them all onto the hexagonal board.
The snakes can be freely rotated and flipped over but not overlapped. |
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Triangle Folds |
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by
Serhiy Grabarchuk |
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Three rectangles to an equilateral triangle! Should there be any mystery
or you simply have to fold them - precisely one fold for each rectangle? |
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Where Is the 5? |
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by
Serhiy Grabarchuk |
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Four pieces form a square with the magic square on it. Just flip over the
pieces and try to make a square once again. Can you say why does a part of
it disappear? |
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Rainbow Necklace Trick |
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by
Serhiy Grabarchuk |
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Show to your spectators which bead was chosen by one of them from any of
seven necklaces you demonstrate. |
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Thumbtacks |
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by
Serhiy Grabarchuk |
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A paper toy being classic for many years, but this time adapted for a
thumbtack theme. Of course, it's not a new standard for the thumbtacks -
just a new dimension. |
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Three Hares |
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by
Serhiy Grabarchuk |
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An old tricky puzzle transformed for the matching card version. The idea
remains to distribute three ears between three hares to give every hare...
two ears. |
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The Hedgehog |
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by
Serhiy Grabarchuk |
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It may be easy to make the hedgehog running in another direction with
moving only two matches. But what about moving three or more matches? |
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Square & Division |
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by
Serhiy Grabarchuk |
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It's easy to divide in half a 2x2 match square with only two matches. But
how to perform the same division to the same square if there are four
matches? |
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Point the Center |
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by
Peter and
Serhiy Grabarchuk |
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Only one of the nine arrows points exactly into the center of the circle,
all of the remaining are only close to it. Can you guess without any
additional measures which one is it? |
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Play |
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Last Updated: April 8, 2012 |
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