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Puzzles 



This page features sample puzzles
of different kinds from this and other sections of the
website. To see more puzzles of these types
just follow the links to their respective pages. 




PutTogether Puzzles
Matchstick Puzzles
Sliding Block Puzzles
Coin Puzzles
Chess Puzzles
Checkered Origami Patterns
Origami Strip Puzzles
Dissection Puzzles
Geometric Puzzles
Puzzle Mix
Puzzle
Favorites
Puzzle Hits
Puzzle Greetings
Projects
Games
Interactive Puzzle Play 

Featured Puzzles 








Mosaic Eggs 
by
The Grabarchuk Family 
In the mosaic, find a pair of
exactly identical eggs. Note that they can be rotated
but not mirrored. Happy Easter!... 

go to puzzle > 






The Mirage Puzzle 
by
Serhiy Grabarchuk 
Fifteen transparent tiles and one
opaque tile are placed within a flat, 3 x 3 box with a
transparent top and bottom. All transparent tiles have
special patterns. Slide tiles to reach the goal position
with all cells showing seven dots each. Note that the central opaque tile is as thick as
two transparent tiles are. 

learn more > 






The Spiral Galaxy Mystery 
by
Serhiy Grabarchuk 
The stars that form this unique
spiral galaxy are Supernova, Nebula, Red Giant,
Protostar, White Dwarf, and Black Dwarf, as shown in the
Start position. Stars can move just along the lines of
the galaxy. Your star challenge is to move the stars to
the Goal position sliding one star at a time, in exactly
fifteen single sliding moves... 

Geduldspiele 
go to puzzle > 






Sliding Tiles for the iPhone/iPod touch and iPad 
by
The Grabarchuk Family and
Mehmet Murat Sevim 
Here is one of the most original
collection of sliders, comprising 300 handcrafted
puzzles, all with realistic and fun gameplay. Sliders (aka
sliding block puzzles) are highly dynamic and incredibly
compact puzzles first popularized in the 19th century.
We have constantly been creating this collection of
sliders during the past 20 years, and many of them were
changed into physical toys or online versions on the
Web. Now it becomes available to all iPhone, iPod touch
and iPad puzzle lovers!... 

read more > 






Fish Crackers for the iPhone/iPod touch and iPad 
by
The Grabarchuk Family and
Mehmet Murat Sevim 
One of the most advanced assembling
puzzles on the App Store is here! It features 100
original puzzles with real 2D physics  move, rotate,
and bump pieces as real physical objects. Puzzles are
ranged from very simple with 3 pieces only, up to really
hard ones with 9 pieces. Some years ago
this puzzle was manufactured and distributed
exclusively in Japan. Now it becomes available to all
iPhone, iPod touch and iPad puzzle lovers all over the
World!... 

read more > 






Puzzle Quizzes for the iPhone/iPod touch and iPad

by
The Grabarchuk Family and
Mehmet Murat Sevim 
Discover a new type of puzzles 
Puzzle Quizzes. Solve 300 original, handcrafted puzzles
with an intuitive touchandanswer gameplay. Challenges
are created in dozens of varied and appealing themes and
difficulty levels so that to satisfy all puzzle lovers
 beginners, experienced, and masters alike... 

read more > 






iCut for the iPhone/iPod touch and iPad 
by
The Grabarchuk Family and
Mehmet Murat Sevim 
iCut is a brandnew visual puzzle
developed for the iPhone/iPod touch. The object is to
cut different shapes into congruent parts by painting
them into different colors. The parts must be identical
in size and shape, and may be rotated and/or reflected.
Sounds easy? iCut proposes you over 1000 different
challenges in six distinctive modes. Challenges are
ranged from the easiest to the extremely hard, so let's
give'em a try!... 

read more > 






Tappi Adventures for the iPhone/iPod touch 
by
The Grabarchuk Family and
Mehmet Murat Sevim 
Welcome to Tappi's adventures! He's
taken pictures from all of them, but accidentally all
those pictures have been broken :( Help Tappi restore
the proper picture of each adventure, and you'll see
what cities he's visited, what modern World Wonders he's
seen, what sports are played around the globe, and much
more! You are welcome to explore Tappi's adventures in
12 different themes containing 12 different adventures
of 3 different difficulty levels each... 

read more > 






The Christmas Star 
by
Serhiy Grabarchuk 
The colorful inlay hides a perfect,
fourpointed Christmas star. The star is exactly similar
to that shown just above the inlay, but can differ in
size and orientation. Can you find the Christmas star?... 

go to puzzle > 










Dicey Multiplication 
by Werner Miller 
Here is a novel version of
traditional play with numbers. The challenge is to
arrange "standard" dice into a pyramidal multiplication
with their top faces read out the factors of the
multiplication and the front faces read out the correct
product... 

go to puzzle > 






LetsTans for the iPhone/iPod touch and iPad 
by
The Grabarchuk Family and
Mehmet Murat Sevim 
LetsTans is a new visual puzzle
developed for the iPhone/iPod touch and iPad. With over 1500 original
challenges presented in ten distinctive play modes, it
delivers a totally new puzzle experience of the
captivating Tangram's spirit and energy. Neat graphics, sounds, and animations, and an
advanced Hints system guarantee you hours of pleasant
and smart enjoyment... 

LetsTans.com 
read more > 






Strimko for PC/Mac 
by
Braintonik Inc. and
The Grabarchuk Family 
Now STRIMKO™, the popular webbased
logical puzzle game, comes as a PC/Mac game. It presents
two distinctive play modes. In the Adventure mode, help
Luana save her planet by collecting celestial Amulets
and reassembling her magical Astrolabe. In the Classic
mode, you can enjoy playing more than 200 handcrafted,
mind bending, Strimko puzzles. Each play mode comprises
four different types of Strimko challengesZen, Pave,
Fit, and Triall in various sizes and difficulty
levels. In the Adventure mode you can additionally play
ten minigames what will make your adventure even more
pleasant!... 

Strimko.com/PCMac 
read more > 






Electronic Brain Games with Puzzle Books 
This puzzle set is a series of
books activated by an Interactive Reader (it recognizes
text and images on the book pages and looks like an
oversized pen) that provide puzzles and other mental
challenges to stimulate the human brain.
Touching the Reader's optic point to a page enables you
to solve puzzles and challenges, ask for hints, time
yourself while working a puzzle, and more. The Reader
also has a mechanical pencil. A cartridge that slips
into the Reader contains all the audio for the books.
The set also includes a set of ear buds.
The first set comprises two puzzle books, Brain Training and
Picture Puzzles. The expanded
set contains six puzzle books: Brain Training,
Brain Training2, Picture Puzzles,
Picture Puzzles2, Sudoku Puzzles, and
Crosswords... 

learn more > 






Coin Lines Exchange 
by
Rodolfo Kurchan and
Jaime Poniachik 
Six coins, three silver and three
gold ones, form two lines placed in the middle of the 4
x 5 board. Coins can only jump over other coins. Your
goal is to exchange the lines in exactly nine moves... 

go to puzzle > 






Strimko for the iPhone/iPod touch 
by
Quokka Studios Pty Ltd and
The Grabarchuk Family 
STRIMKO™, the popular webbased
logical puzzle game, comes to the iPhone/iPod touch. The
Strimko app presents 120 never before published,
handcrafted puzzles in four difficulty levelsEasy,
Medium, Hard, and Master. Puzzles are in four sizes, 4 x
4 through 7 x 7. An intelligent hinting system can help
you, when you get stuck. Additional puzzle packs
available... 

Strimko.com/iPhone 
read more > 






The Bat 
by
Serhiy Jr.
&
Peter Grabarchuk 
The Bat is formed of ten matches.
The goal is simple: Move only three matches so that the
Bat flies in another direction. Bear in mind that you
have to use matches without any special tricks like
cutting, breaking or overlapping... 

Puzzles.COM 
go to puzzle > 






The Eight Puzzle 
by
Peter Grabarchuk 
The 8 shape can be assembled with
twelve different pieces consisting of four equilateral
triangles each. Can you discover the way how to do that?
You may rotate pieces as you like, but not overlap or
flip them over... 

Puzzles.COM 
go to puzzle > 






Ten Hearts 
by
Serhiy Grabarchuk 
Place twelve pieces within a
rectangular card so that exactly ten hearts appear.
Every heart consists of two halves. Overlapping of the
pieces is not allowed, and no part of hearts must be
left out... 

Puzzles.COM 
go to puzzle > 






Triangle Folds 
by
Serhiy Grabarchuk 
You have three paper rectangles
colored in two colors, yellow and red. Using them, make
an equilateral triangle colored fully in red on one of
its sides and fully in yellowon the other. Note that
you can perform just one simple fold for each rectangle... 

Puzzles.COM 
go to puzzle > 






Halloween Cuts 
by
Serhiy Grabarchuk 
A piece of checkered cloth shows
nine letters that spell: HALLOWEEN. Make three
cuts and obtain four fragmentsthen a square, using
them, try to form. Trick or Treat!... 

go to puzzle > 






The MG Coin Puzzle 
by
Serhiy Grabarchuk 
Seven coins form a stylized M.
Moving a coin at a time and observing a "double touch"
rule, rearrange the M into another stylized letter, G.
Could you achieve the goal in four single coin moves?... 

go to puzzle > 






Double Play 
by
Larry D. Nichols 
Double Play resembles the 15
Puzzle, with square tiles numbered 1 through 12
contained in a 4 x 4 frame along with four empty cells.
It has just one new rule: The tiles can only slide in
pairs, with one tile pushing another. Move tiles from
any given or random position (pattern) back to the Home
pattern, and bear in mind that all of the Double Play
challenges are quite difficult. Happy Puzzling!... 

play > 






Square & Division 
by
Serhiy Grabarchuk 
Eight matches form a 2 x 2 square.
With four additional matches divide this square into two
parts of the same area and shape. But remember that you
have to use matches without any special tricks like
cutting, breaking or overlapping... 

Puzzles.COM 
go to puzzle > 






The Marbles & Rows Puzzle 
by
Serhiy Grabarchuk 
Put nine square tiles with color
marbles into a 3 x 3 square so that to get nine
horizontal and nine vertical rows of marbles containing
exactly four marbles of four different colors each.
Distances between the marbles and their order in the
rows do not matter... 

Puzzles.COM 
go to puzzle > 






Serpentine Lines 
by
Serhiy Grabarchuk 
Can you determine which three (and
only three!) serpentine lines out of eight given ones
will form (when you stack them together) a full grid?
You may rotate serpentine lines as you like, but you
cannot flip them over... 

Puzzles.COM 
go to puzzle > 






The Fish 
by
Serhiy Grabarchuk 
This puzzle combines a sliding
block puzzle with a matchstick puzzle. Eight matches
pasted onto square pieces within a 3 x 4 tray form a
fish which swims to the right. Slide pieces to rearrange
them so that the fish swims in the opposite direction... 

Puzzles.COM 
go to puzzle > 






BreakinTwo 
by
Serhiy Grabarchuk 
A shape consists of square cells.
The object is to divide it into two congruent parts.
They must be identical in size and shape, but you may
rotate them and their outlines can even be reflections
of each other... 

Puzzles.COM 
go to puzzle
> 






Cut the Q 
by
Peter Grabarchuk 
You have a stylized letter Q. Your
challenge is to cut it into two congruent parts. They
must be the same size and shape, but may be rotated
and/or reflected. Note that your cuts may be done
anywhere, not just along the lines of the diagram... 

Puzzles.COM 
go to puzzle > 






Parted Cube 
by
Peter Grabarchuk 
Each of the eight combinations of
four unit, 1 x 1 x 1 cubes fits within a transparent, 2
x 2 x 2 cube. Determine which two shapes can make a
whole, 2 x 2 x 2 cube when joined together? Keep in mind
that unit cubes in each shapes are separate (not joined)... 

go to puzzle > 






Twins 
by
Serhiy Grabarchuk 
Some of the nine shapes make pairs
consisting of two exactly identical shapes each. Shapes
of each pair are shown from different directions, but
never reflected. How many pairs can you recognize? Which
shapes make 'em?... 

Puzzles.COM 
go to puzzle > 










The Holey Square Family 
by
Serhiy Grabarchuk 
One of the simplest geometric
paradoxes with vanishing areas was described by Martin
Gardner in his classic book, Mathematics, Magic and
Mystery, in 1956. The paradox is more than two
centuries old, but it still attracts attention of
puzzlers, mathematicians, and magicians. And that is why
there are dozens of different variations based on its
principle... 

go to puzzle > 






The Tangramion 
by
Serhiy Grabarchuk 
This is a new assembling puzzle
consisting of seven twosided tiles which initially form
a perfect square. Using all the seven tiles, you can
solve different challenges both entertaining and
cognitive... 

go to puzzle > 






The Tangramboard Plus 
by
Serhiy Grabarchuk 
The
Tangramboard puzzle extended with an additional
checkered 3x3 MiniTangramboard makes quite a tricky
challenge. Its goal sounds simply: "Using all the 11
checkered tiles, assemble one big (5x5) checkered
square..." 

play > 






Coin Triangle 
by
Serhiy Grabarchuk 
Nine coins form a triangle on the
table. The challenge is to change the triangle into
another shape, moving the minimum of the coins. What is
the best result you can reach?... 

Puzzles.COM 
go to puzzle
> 






Four Color Rings 
by
Peter Grabarchuk 
Segments of four color Rings are
gliding within each of eight square tiles which can
slide within a 3 x 3 tray. The initial position of the
tiles features the complete Yellow Ring. Choose a color
and slide tiles until a complete Ring of that color is
formed. There are three plus one challenge for which you
will need to be fully concentrated. But don't forget to
have a break after each challenge... 

play > 






Bumping Squares 
by
Serhiy and
Peter Grabarchuk 
This sliding block puzzle consists
of eight square tiles. Each tile can be colored into
blue or orange color. When a tile bumps another tile it
changes its color to the color of the tile it bumps
into. I.e. if an orange tile bumps the blue one, the
orange tile changes its color into blue. If an orange
tile bumps another orange tile it does not change its
color. Sounds simply? So give it a try solving a dozen
different challenges... 

UniPuzzle.com 
go to puzzle > 






The Correct Order Puzzle 
by
Serhiy Grabarchuk 
It is a basic puzzle for this type
of sliding block puzzles in a 3x4 tray with nine square
blocks which make a 3x3 pattern, and a 1x2 "shuttle"
block. The goal is to restore the correct order of the
numbers on the square blocks... 

play > 






GKnights Exchange 
by
Serhiy Grabarchuk 
Eight chess knights, four white and
four black, placed on the special Gchessboard
should exchange their position. Counting a consecutive
series of leaps of a knight as one move, can you swap
the knights in exactly eleven moves?.. 

go to puzzle > 







6B 

The Origami Checkerboard Puzzle 
by
Serhiy Grabarchuk 
The object is simple: Take a square
sheet of paper (colored at one side, and white on the
other), and performing just "book folds" get a checkered
pattern in the minimal number of single folds... 

read more > 






Two Oval Stools to a Table 
by
Serhiy Grabarchuk 
This wellknown, classic puzzle
with transformation of two oval stools into a circular
table top has long and interesting history. More than
180 years ago, in 1821, John Jackson posed in his book
Rational Amusement for Winter Evenings a puzzle
how to transform a circle into two hollow ovals... 

read more > 






ArcoTriangles 
by
Serhiy Grabarchuk 
If you take three circles and
overlap them as shown in the diagram at right, you can
see that the whole shape is divided into seven
nonoverlapping arcotriangles. An arcotriangle is a
shape formed with three arcs which are crossing in three
vertices of the arcotriangle... 

read more > 






Arthur Stone's Flexatube 
by
Serhiy Grabarchuk 
It is a great and unique puzzle
discovered in 1939. Martin Gardner writes that Arthur
Stone discovered the Flexatube somewhat accidentally
working on a flexagon, and was very surprised with this
discovery... 

go to puzzle > 






Strimko 
by
The Grabarchuk Family 
Strimko is the newest and
streamiest play with logic numbers created and developed
by the Grabarchuk Family. The rules of Strimko are
simple, the play is deep and fun, and the logic is as
unique as each Strimko challenge. The Strimko.com
website presents a set of three new Strimko puzzles each
week both in interactive and printable formats. Enjoy
the streamy logic of Strimko!... 

Strimko.com > 






Dice Sudoku 
by
Peter Grabarchuk 
Another version of a classic Sudoku
developed to play with special cards and "standard"
dice. You have a set of 6x6 challenge cards ranged from
Beginner to Expert; these card can be printed on paper,
cardboard, or cloth... 

go to puzzle > 






Cast Coaster 
by
Serhiy Grabarchuk 
This is my first puzzle
manufactured by
Hanayama Toys Co., Ltd. in their famous and unique
Cast Puzzle series. The puzzle consists of only
three light, metal rings linked into a chain. The rings
are to be assembled into a nice pattern which uses
ornamental motif of the simplest, threeline braid
closed into a loop. 

read more > 






Fish Crackers 
by
Serhiy and
Peter Grabarchuk 
This assembling puzzle is published
by
Gakken Co. Ltd. in their popular Embrain
Series, and manufactured by
Chronos Co. Ltd. The puzzle set consists of nine
funny tiles, and 48 challenges in 5 difficulty levels
are proposed to be solved on the pages of the supplied
booklet. Also, you can play some Flash interactive
challenges of the Fish Crackers at
Kids.Gakken
(here)... 

go to puzzle > 




Games 



Loyd, Dudeney and... Galactic Takeover 
by
Serhiy Grabarchuk 
It's amusing to see how things that
were interesting to puzzlers many decades ago look fresh
and attractive today. Of course, they were presented in
a somewhat different manner, but their core is still
appealing to their solvers... 

read more > 






Seven Puzzles for G4G7 
by
Serhiy Grabarchuk 
The
Gathering for Gardner (G4G) is the unique biennial
event founded in 1993 by Gardner fan and puzzle
collector, Tom Rodgers. Getting together in Atlanta, the
World's foremost mathematicians, puzzlers and magicians,
deeply influenced by Martin Gardner's work and life,
bring with them some writings related to the fields of
their interest and prepared specially to honor Martin
Gardner... 

read more > 






Puzzle Classics at G4G7 
by
Serhiy Grabarchuk 
Classic puzzles make a substantial
and distinctive part within all puzzles available to
puzzlers in different forms, real and virtual. Many of
them are wellknown, and still they hide a lot of
surprises which can lead puzzlers to new and improved
solutions, while puzzle creators can come up with new
challenges and variations... 

read more > 





PutTogether Puzzles
Matchstick Puzzles
Sliding Block Puzzles
Coin Puzzles
Chess Puzzles
Checkered Origami Patterns
Origami Strip Puzzles
Dissection Puzzles
Geometric Puzzles
Puzzle Mix
Puzzle
Favorites
Puzzle Hits
Puzzle Greetings
Projects
Games
Interactive Puzzle Play 

