Peter Grabarchuk

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This page gathers all puzzles presented at Puzzles.COM, which are either created by Peter Grabarchuk or made after some of his puzzle ideas.

Totem Pole 1
Totem Pole 1
by Peter Grabarchuk
The shape consists of 7 blocks. Which is bigger - the total volume of the red blocks, the total volume of the blue blocks, or the total volume of the yellow blocks?
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Triangles in Coins
Triangles in Coins
by Serhiy and Peter Grabarchuk
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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Heart in Heart
Heart in Heart
by Peter Grabarchuk
Which region is bigger - A (blue) or B (red)?
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Square-Cocoon-Butterfly
Square-Cocoon-Butterfly
by Peter and Serhiy Grabarchuk
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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The Sun
The Sun
by Helen Homa and Peter Grabarchuk
Rearrange some strange symbols and get an entire word which clearly indicates SUN. This challenge combines visual and moving skills with little linguistic experience.
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Block Twins
Block Twins
by Serhiy and Peter Grabarchuk
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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Squares 4 Four
Squares 4 Four
by Peter Grabarchuk
A dozen of dots are scattered among the four pieces and your goal is to drive these dots into the corners of the four squares at once.
Play  |  Download  |  Matching Cards
Lace Loops
Lace Loops
by Peter Grabarchuk
Place six color loops onto a 4x5 grid. No loop should touch any other one; no loop should be left outside the gridís borders. Is the grid big enough to hold all the loops within strictly following the rules?
Play  |  Download  |  Put-Together Puzzles
Turning Digits
Turning Digits
by Peter Grabarchuk
Make some simple device be turning and try to guess what image it will produce. It seems your imagination will be required instead of your math skills.
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The Bat
The Bat
by Serhiy Jr. and Peter Grabarchuk
Make the match bat flying away in another direction. What do you think, how many moves will you need to do this? Just three right moves...
Play  |  Download  |  Matchstick Puzzles
Message Reading
Message Reading
by Peter Grabarchuk
Some letters are interwoven inside four transparent cubes. There are some hints to arrange the letters in a message and your goal, thus, is just to read it correctly. Can you do that?
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The Rock Climber Maze
The Rock Climber Maze
by Peter Grabarchuk and Helen Homa
Climb up a mountain in a little bit unusual way since all of the mountain's rocks are colored in one of the four colors and your route to the top depends on what color sequence you choose.
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Triangle Unicursals
Triangle Unicursals
by Peter Grabarchuk
One more unicursal challenge with stained-glass windows. Which of the six windows can be drawn in the not-taking-the-pencil-off and not-going-along-the-same-line-twice manner?
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Square Skate
Square Skate
by Peter Grabarchuk
This little "skate" can be divided into four identical parts which can form a perfect square. The only task is to find these four parts...
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Arrow Cutting
Arrow Cutting
by Peter Grabarchuk and Helen Homa
A simple arrow has to be divided in just three pieces which, when rearranged, create a whole rectangle. But the pieces have to be different in their shapes and areas. Sounds easy?
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Sphere Between Cubes
Sphere Between Cubes
by Peter Grabarchuk
A cube is inscribed in, and a cube is circumscribed outside the same sphere. What are their relative volumes? Any ideas how to calculate them?
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Snaps^3
Snaps3
by Peter Grabarchuk
Six snapshots of the same thing just taken from different positions. One of them is wrong. Matching the 2D snapshots with the 3D thing can you figure out which one it is?
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Colored Umbrellas
Colored Umbrellas
by Peter Grabarchuk
Sixteen umbrellas arranged in a 4x4 array. Can you find two identical among them?
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Three Bracelets
Three Bracelets
by Peter Grabarchuk
Three bracelets look very much alike. Only two bracelets are totally identical. Which two of them? Would it be hard to discover?
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Areas in the Big Square
Areas in the Big Square
by Peter Grabarchuk
Overlapped circles form different color areas. The challenge is by using simple calculations to find two identical areas. The approach can be easy and clever simultaneously.
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The Band Cross
The Band Cross
by Peter Grabarchuk
There are four snakes interwoven in a cross-like shape. Each one of a different color: black, blue, green and red. The challenge is to spot the shortest of them.
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Toy Strip Origami
Toy Strip Origami
by Peter Grabarchuk
Three colored strips have to be folded into three colored letters. The key idea is to keep the number of the performed folds as low as possible. Is it a challenge that would be TOY to you?
Play  |  Download
Cubed Triangles
Cubed Triangles
by Peter Grabarchuk
A shape consists of five adjacent squares and two triangles. There are some variations of the shape provided. The goal is to figure out which of them can be folded into a cube. A good exercise to train your spatial reasoning.
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Color Prism Patterns
Color Prism Patterns
by Peter Grabarchuk
It is known only two among eight colored patterns can produce two identically colored prisms when folded. Can you spot them correctly in this "2D-to-3D" folding-spatial puzzle?
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Cubed Rectangles
Cubed Rectangles
by Peter Grabarchuk
Eight possible folding patterns for a unit cube. But not all of them are correct. Find out which can be successfully folded into the cube and which cannot. A spatial challenge to train and enrich your imagination.
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Eight Checkered L's
Eight Checkered L's
by Peter Grabarchuk
Checkered capital L-shaped pieces have to create an ordinary 8x8 chessboard. Your goal is just to find their proper positions within it. Guess it will be easy?
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Plus 2 Hexagons
Plus 2 Hexagons
by Peter Grabarchuk
Four contours of regular hexagons are already available. The goal is quite simple - rearrange them in some way so that two more regular hexagons would appear. What's the trick?
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Square-in-Square
Square-in-Square
by Peter Grabarchuk
When two rectangles are placed side by side one square is supposed to be created. But here one more square will appear. The challenge is to select the right rectangles from the set provided.
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The Zero Puzzle
The Zero Puzzle
by Peter Grabarchuk
Challenge your imagination with this funny puzzle, and free your creativity for new smart shapes you may form with its pieces.
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The Triangular Grid
The Triangular Grid
by Peter Grabarchuk
Arrange eight pieces to create a shape with a triangular pattern on it. Each piece is cut from a hexagon and includes a part of the pattern on it. The goal is to fit the pieces correctly within the board.
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Hexa-Snakes
Hexa-Snakes
by Serhiy and Peter Grabarchuk
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 in Addition
Triangle in Addition
by Peter Grabarchuk and Helen Homa
A rhomb and a square made of eight matchsticks. More just three matchsticks and create an equilateral triangle in addition to the two initial shapes. What is the right approach?
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The Bird
The Bird
by Peter Grabarchuk
Help the bird to be looking in another direction. Just move two matches and a button to do this.
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The Match Cross
The Match Cross
by Peter Grabarchuk
Five identical squares form a cross. Three matchsticks can be moved so that six identical squares would appear. The only thing left is to find the spots for the matchsticks to be moved to. What are they?
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Coin Exchange
Coin Exchange
by Peter Grabarchuk
Invert a capital L of coins into another L only by sliding of the coin pairs. Now that you know this simpLe ruLe, it couLdn't be very difficuLt to sLide the coins up to the soLution...
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Coin Butterfly
Coin Butterfly
by Peter Grabarchuk
Two equilateral triangles are created with the help of five identical coins. Slide only two coins so that the equilateral triangles are now both of different size.
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Point the Center
Point the Center
by Peter and Serhiy Grabarchuk
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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Last Updated: April 22, 2011 top
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