
The Phone Revelation 
Imagine you have a snapshot with a required phone number almost completely hidden by a pen. Would you be able to discovery, based on logical reasoning, what the number could be? 
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Bumping Squares 
Bump the
square tiles into each other to obtain a certain pattern.
When a tile bumps another tile it changes its color to the
color of the tile it bumps into. Multilevel sliding block
puzzle set. 
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SquaresRegionsColors 
When a
blue part overlaps a yellow one a green part is created. Can
you make just one improvement so that all color parts are of
the same area? 
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Stained Glass Unicursals 
Only one
of the six windows can be drawn with one line without taking
the pencil off the paper. Which window is it? 
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Balancing the Cubiminoes 
A dozen
of identicallylooking cubes. Grouped into three solid
pieces. One cube is lighter than the rest of them. Can you
figure out the lighter cube with two weighings using the
special scales? 
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The Four Hearts Puzzle 
Slide a
dozen of pieces around until four complete color hearts
appear. Add more fun to your Happy Valentine's Day! 
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Olympic Coins 2 
An array
consisting of five identical coins reminds the Olympic Rings
symbol. The goal sounds not very hard, but with each move a
certain rule should be observed, and, moreover, the least
possible number of moves should be employed. 
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New Year's TriLights 
One of
the two festive puzzles created to celebrate both our first
anniversary and the New Year 2008. The other one is
Checkered XTree. We look forward to more puzzling in the Year
2008. Happy New Year! 
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Checkered XTree 
One of
the two festive puzzles created to celebrate both our first
anniversary and the New Year 2008. The other one is
New
Year's TriLights. We look forward to more puzzling in the Year
2008. Happy New Year! 
Solve > 






Christmas Circle 
This was
our Christmas puzzle gift for 2007. A number of holiday
characters create a circle, though some of them have to be
exchanged in order the circle is correct. Make it correct
using the minimum number of exchanges. 
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Playing with Coin Garland 
Eight
coins are arranged into a stylized Christmas Tree with three
coins indicating a garland. The object is to change the
location of the garland on the tree with each of the six
challenges. 
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Close Numbers 
All but
one number of a certain arrangement are revealed on a grid.
Find out the right number and the right cell it should be
written in so that the gridbased pattern is finally
complete. 
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Book Pages 
Having
revealed just two fragments of the book's page numbers would
it be enough for you to come to a definite logical
conclusion what is the total number of pages in the book? 
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Triangle to Square 
Is it
possible to draw a perfect square using just an irregular
piece of paper, an ordinary pencil and an unusual ruler in
the shape of an equilateral triangle? Would it be enough to
complete the task successfully? 
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Pumpkin Glow 
Take a
little break and have some fun before departing to your
favorite Halloween party. Just line up the pumpkins and get
some of them glowing. Charge your brain with the smart
festive energy! 
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Two Glasses 
Each of
the two glasses can contain 600ml of water. Can you get
exactly 400ml in one glass and exactly 300ml in another
without any additional measuring tools except for the
glasses themselves? 
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Evergreens 
Two
letters are missing  each one in respective evergreen.
Discover the letters, whether they are the same or different,
and fill out the empty spaces to finish both flowers. What
are these letters and why? 
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SketchFrame 
They all
suppose to possess something in common. But one of them is
missing. Figuring it out is the goal to reach. Which one it
can be so that the entire sequence is restored? What
sketched ideas can you come up with? 
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NEWS Guide 
Very
often it's hard to decide between just two directions to
stick to the one of them. This is a challenge to choose
between eight directions where the final choice is not
limited to the only direction but is multidirectional
instead. 
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Downsize 2x2 
It's not
that easy when the challenge is to increase the area in a
matchstick puzzle. When the challenge is to decrease the
area it sounds like to be a much easier task. Or could it
happen to be a wrong impression instead? 
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Hexaframes 
Would it
be possible to create several more regular hexagons from the
four transparent hexagons? They can be of any size, they
only have to be regular. If the answer to the question is
"yes", then what is the limit? 
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Always Three 
Six
identical coins can be easily arranged in the shape of a
perfect triangle. Then it can be easily turned at 180 degrees
with the help of two single moves. But what if the
additional rule is always to keep three rows of three coins
each after every single move? 
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Lily Pads 
Six lily
pads are at your disposal already. When all of them are
placed on the pond will be there a room for two additional
lily pads to appear on the surface? And, by the way, all the
lily pads have to be rotated identically. 
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The KC Office Puzzle 
Planning
a floor in any building is never easy. It becomes even
harder when some additional conditions should be embraced.
Would you like to check your skills and abilities in a kind
of floorplanning job with this distanceoptimizing puzzle? 
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One Magic Square 
A Magic
Square is a number square in which the digits in each row,
column and two main diagonals add up to the same number.
With this puzzle the challenge is not only to figure out the
correct places for each digit, but first to discover the
digits themselves! 
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Dieangles 
If it is
known a trio of pips on the faces of an ordinary playing die
can lie in the vertices of an equilateral triangle, how many
such trios can you find yourself? How easy this triangle
quest through the die’s pips can be? 
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Simple NEO ONE 
One word
can be rearranged into another with a series of simple
moves. The only difference is in their colors. Your goal is
to slide the letters to exchange the words' colors but
retain the meaning. The less moves it takes the better. 
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The Wigwam 
Ten matchsticks are arranged into a shape which in turn has to be divided into two parts with the help of two extra matchsticks. There is no need to care about the parts' shapes. The main objective is to have their areas equal. 
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Cut off the Corners 
A number
of coins placed in the cells of a square grid create a
number of right angles. Can you move some coins to some
other cells so that to get rid of right angles completely?
What would be the minimum number of moves? 
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The 4P Toothpick Challenge 
In a
group of four there is someone who desires to be selected
the most, and someone who desires to be selected the least.
Which strategy each of them should hold to so that their
odds to obtain the desired result are the highest possible? 
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The Checkered TOY 
Assemble
a set of checkered pieces into the TOY word. Then rearrange
them and make a regular chessboard. A 2in1 puzzle with the
key rule to keep the light and shaded cells properly
alternating and coinciding with the respective colors on the board. 
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Get the One 
It's
quite a straightforward challenge when you have the distance
of X to get the distance of 2X. But what about the vice
versa challenge, when you have 2X and the goal is to get X?
No bending, no cutting, no damaging, just fair drawing and
measuring. 
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Skew Slide 
Slide the
red and yellow tiles within the board to reach the goal
position in less than 32 moves. To slide the pieces click
them following the guidance of the highlighted arrows. A
light optimization Sliding block puzzle. 
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Hexagons Plus 
When
cubes are arranged in one way a number of regular hexagons
can be seen. When the same cubes are arranged in a little
bit different way one more hexagon would appear. Can you
discover where the extra hexagon is hidden? 
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Coupled Hearts 
Create 14
couples of hearts adjusting them to neighboring cells as if
they always belong together. Challenge your sweetheart
before you say a word. Your St. Valentine’s Day puzzle. 
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What's Next? 
What
comes next? A typical question with any sequencebased
challenge. The only thing left is to get on the idea what
the sequence is actually about... 
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Change the Total 
Eleven
matchsticks, three numbers, one total. It is known when one
matchstick is moved to another position it can add 1 to the
total. What matchstick is it and what position it should be
moved to? Will it be tough? 
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What's in the Square? 
Three
squares are already filled out. The fourth one is still
empty. Can you replace the question mark in that last square
with some drawing and finish the pattern? What should be
drawn there in the square? 
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Tetramino Checkers 
Five
transparent pieces. Each one contains a different tetramino
shape on it with black & white cells. The goal is to stack
the five pieces up so that a regular 4x4 chessboard (tetraboard)
would appear. 
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Olympic Coins 
Rearrange a bunch of coins within the Olympic Rings symbol following the set of simple rules provided. Does it look like an Olympic task for champions only? And what will be more important: the participation or the victory? 
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Festive Ignition 
Decorate Christmas tree with the color ornaments to light it in a
special way and style. Add more ignition to your winter
holidays and make them brighter. Happy New Year 2007! 
Solve > 


