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Sunny Walk
Sunny Walk
after Lewis Carroll
A special garden possesses a number of hemispherical stones with paths around them. The challenge is to walk through all the paths in the garden.
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Rose Garden 3
Rose Garden 3
after Lewis Carroll
You can plant nine roses in the shape of circle in your garden. But why to follow such an obvious pattern if there are a bunch of more intriguing possibilities out there?
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Rose Garden 2
Rose Garden 2
after Henry E. Dudeney
A nobleman has complicated for his gardener the task of planting ten roses in the garden into five lines with four roses in every line. See what the complication really is...
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Stained-Glass Circle
Stained-Glass Circle
by Henry E. Dudeney
An enigmatic pattern of the stained-glass circle with an intriguing question of how many continuous strokes are required to draw it without taking you pencil off the paper. Want to try it right away?
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Three Squares 2
Three Squares 2
by Lewis Carroll
Three interlaced squares to be drawn in a unicursal manner. A modification of the challenge has been already published on our site in the past.
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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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In the Space
In the Space
after Henry E. Dudeney
A challenge with drawing several lines to obtain a number of regions with a certain object in each of them. This time the theme is taking from the space - sky and the spacepods.
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Five Routes
Five Routes
after Sam Loyd
Help each of the five men to reach their respective houses without crossing the routes of the rest four. Finding the proper routes leading to the aim is always a good challenge itself.
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Rose Garden
Rose Garden
by Boris Kordemsky
A gardener has an ambitious plan to replant his flower bed, increasing the number of the 4-rose-straight-line rows but keeping the overall number of roses intact? Would it be possible?
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Another Twelve Points
Another Twelve Points
One more challenge in a series of 12-dots-5-lines puzzles. Though the twelve dots are arranged in little bit different way, the goal remains - 5 lines connected in a loop to cross them all out.
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Dots & Squares
Dots & Squares
You have nine dots drawn in a square arrangement. Your goal is to draw three squares in a way each dot is enclosed within a separate region. How on this?
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Twelve Points
Twelve Points
The next challenge in the series of points-and-lines puzzles. The main goal remain intact - go through all the points not lifting a pencil off the paper. This time - twelve dots and five lines. An additional rule - the lines should be connected in a loop.
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Starry Sky
Starry Sky
The object of this puzzle is to connect all the sixteen stars above
with exactly 6 connected straight lines without lifting your pencil off
the paper. The lines must go through the centers of the stars.
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Puzzling Journey 2
Puzzling Journey 2
by Sam Loyd
Get through the three gates placed on the 8x8 board, visiting all of the 64 cells only once. Enter the board at the red gate, pass under the green and leave at the blue one.
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Around Dodecahedron In 20 Points
Around Dodecahedron In 20 Points
by W. R. Hamilton
Travel along the edges of a dodecahedron (a three-dimensional solid with twelve pentagonal faces) through the 20 corner points of it and then finish at the start point.
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10-in-5-Rows
10-in-5-Rows
Which template for an orchard do you have to use when you want to plant ten trees in five straight rows of four trees each? Is there any template at all?
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The Unicursal Marathon
The Unicursal Marathon
by Serhiy Grabarchuk
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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A Hopscotch Puzzle
A Hopscotch Puzzle
by Henry E. Dudeney
Draw a continuous line with no self crossings. This time it's a hopscotch figure that should be drawn, and there are no significant problems to do it.
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Puzzling Journey
Puzzling Journey
It seems to be easy to travel around the board along a path that goes through every cell. But what if there are several cells that have to be avoided?
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The New Star Puzzle
The New Star Puzzle
by Sam Loyd
Explore the celestial map and try to discover a new star of the first magnitude. You have to know that this new star doesn't touch to any other one.
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Shortest Connection
Shortest Connection
after Martin Gardner
Suppose you have to build a railroad network between four cities placed in the corners of a perfect square. What pattern must you choose to minimize it?
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Four Circles
Four Circles
by Thomas H. O'Beirne
The four intersecting circles have to be drawn in the traditional way - neither taking a pencil off the paper, nor going over any part of the line twice.
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In Ancient Greece
In Ancient Greece
by Sam Loyd
Make your own virtual travel to discover the secret of an ancient symbol. The main thing is to make the journey as straight as possible.
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The Quarrelsome Neighbors
The Quarrelsome Neighbors
after Sam Loyd
Help three neighbors to plan uncrossing pathways from their houses to their park's gates. Hopefully this will reconcile them!
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Three Squares
Three Squares
after Lewis Carroll
It almost doesn't cost a thing to draw three squares without taking a pencil off the paper and without crossing the line. Or does it?
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Nine Points
Nine Points
Nine points, four lines, a pencil and... possibly an eraser. Go through all the points not lifting a pencil off the paper.
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Last Updated: July 15, 2011 top
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