Questions tagged [three-dimensional]
This tag is used for geometric puzzles, if one wants to stress that the setting is not 2-dimensional but 3-dimensional.
89
questions
8
votes
1answer
71 views
A mini cryptic cube
A quick teaser, enjoy!
Across
3 Dance bores serious (5)
6 Light angry look (5)
11 Finally asked it to agree (5)
12 Rails - cunning homes of thieves (5)
15 Trap saner design (5)
16 Kingdom with real ...
14
votes
2answers
791 views
Flood on the top floor
There has been a water incident on the top floor of a building, and one apartment has suffered some water damage. As in, a lot of water damage. The entire apartment is filled waist deep with ...
9
votes
2answers
605 views
Yajilin minicubes: the Hullabaloo, the Brouhaha, the Bangarang
These are three-dimensional yajilin puzzles. In each puzzle, the four squares depict the layers of a $4\times4\times4$ cube.
Shade some cells on each layer. The numbered cells show how many ...
8
votes
1answer
248 views
Mixed-breeds are puzzles too!
This is a three-dimensional mixed-breed puzzle. The five squares depict the five layers of a $5\times5\times5$ cube. The goal is to solve the odd-numbered layers as yajilin and even-numbered layers as ...
10
votes
1answer
278 views
Volcanic 3D masyu
This is a three-dimensional masyu puzzle. The six squares depict the layers of a $6\times6\times6$ cube. The goal is to make a single loop in 3D space which fulfills the following properties:
The ...
11
votes
1answer
165 views
3D devilry, DIY edition
This is a diagramless three-dimensional cryptic crossword. Solve the clues and then fit the answers into a three-dimensional grid.
The numbering of the clues starts from the #1 (nearest) layer. On ...
13
votes
2answers
422 views
A cubeful of three-dimensional devilry
This is a three-dimensional cryptic crossword. The seven squares represent the layers of a $7\times7\times7$ cube. The clues are a mix of Printer's Devilry and normal cryptic clues.
Across
13. ...
9
votes
1answer
199 views
A Difficult Rhombicosidodecahedron Slitherlink
This is the evil older brother of this puzzle. I'm posting it more out of scientific curiosity than because it is a fun puzzle, because it is not a fun puzzle. It's just really hard. I wrote a ...
6
votes
1answer
287 views
3D Statue Park: Daggers and dashes
This is a three-dimensional Statue Park puzzle.1 The five squares in the below image depict the five levels of a $5\times5\times5$ cube. The goal is to fit inside it the eight pieces shown in the ...
6
votes
2answers
386 views
3D Statue Park: U shapes
This is a three-dimensional Statue Park puzzle.1 The five squares in the below image depict the five levels of a $4\times4\times5$ cuboid. The goal is to fit inside it the four three-dimensional ...
11
votes
1answer
235 views
Brain-breaking 3D masyu
This is a three-dimensional masyu puzzle.1 The five squares depict the layers of a $5\times5\times5$ cube. The goal is to make a single loop in 3D space which fulfills the following properties:
The ...
11
votes
1answer
171 views
Rhombicosidodecahedron Slitherlink
This is a Slitherlink puzzle, being played on the surface of a 3D object, a Rhombicosidodecahedron. If you are not familiar with Slitherlink puzzles, I don't suggest starting on this one.
Rules in ...
4
votes
1answer
104 views
The revenge of 3D light bulbs
This is a three-dimensional Akari puzzle (also known as Light Up). The five squares represent the layers of a $5\times5\times5$ cube, top to bottom. The objective is to add light bulbs into any number ...
8
votes
6answers
877 views
Inside Out and Back to Front
Here's a quickie:
I own a shirt that has a logo on the chest on my left side. This morning I accidentally put it on inside out and back to front. Where did the logo go?
Please explain your answer ...
5
votes
2answers
134 views
3D Nonogram - Spinoff of the Reboot
This puzzle is inspired by recent 3D nonogram puzzles by Jafe and Omega Krypton. Check those out if you want, but they are not required to understand this puzzle.
This 3D nonogram has clues with two ...
7
votes
2answers
260 views
Nono-cube - Ultimate Puzzle Giant
Prologue - Instructions
Shamelessly copied and pasted the following from @jafe's puzzle :P
This is a three-dimensional nonogram. The first square gives the enumerations for the Z-axis, top to ...
15
votes
1answer
1k views
Cover a cube with four-legged walky-squares!
This is a four-legged walky-square:
This shape has an interesting property: It is possible to map multiple copies of this shape onto the surface of a cube in a way that perfectly covers the entire ...
11
votes
1answer
674 views
Three-dimensional light bulbs
This is a three-dimensional Akari puzzle (also known as Light Up). The six squares represent the layers of a $6\times6\times6$ cube, top to bottom. The objective is to add light bulbs into any number ...
54
votes
2answers
6k views
Can you perfectly wrap a cube with this blocky shape?
The following blocky shape:
can be folded onto the surface of a cube in a way that perfectly covers the entire cube with no gaps and no overlaps.
How can it be done?
5
votes
0answers
154 views
Unfold a right angle pyramid into a square
This puzzle refers to a feature of right angle pyramid:
The relation between the areas of the three perpendicular faces and the diagonal surface area is given as - $S^2_x+S^2_y+S^2_z = S^2_d$
...
4
votes
1answer
111 views
The ultimate conversion of a square into right angle pyramid
This is a follow up of other puzzles. Here a general case of which the other cases are a subset.
Given a square of any size, cut it into four pieces to be reassembled into a right angle pyramid (the ...
10
votes
1answer
158 views
Pure 3D Crossword
This puzzle was made as requested by EKons, here.
So, enjoy this three-dimensional realistic sensation!
6
votes
1answer
176 views
Restoring 3D Tetromino Puzzle
You won't believe this. I worked all night to make a new 3D tetromino puzzle, and just as I was about to save the final version there was a power outage! Now I can't remember what the final clues were ...
7
votes
2answers
262 views
A pyramid from a square
Given a square piece of paper. Cut it into 4 pieces that could be used to create a right angle pyramid - the 4 pieces are the faces of the pyramid.
12
votes
1answer
644 views
Reverse dots and… cubes? - Snowflake edition
A Reverse dots-and-boxes puzzle inspired by @jafe
Albert and Robinson are playing a game of reverse dots and boxes.
The players take turns adding one plane in one free spot on the grid (...
6
votes
1answer
203 views
3D tetromino placement
The following image depicts a $5\times5\times5$ cube. Insert any number of the pictured 3D-tetromino pieces into the cube to satisfy the conditions listed below. Pieces may be rotated in any direction....
8
votes
1answer
271 views
3D Chess - Stale NBA (kNight-Bishop Assault)
This is my very first chess puzzle. Any constructive feedback is more than welcome. Thanks!
Introducing 3D Chess!
To make things simple for the first time, we are using a $3\times3\times3$ ...
6
votes
1answer
177 views
3D nonogram – The one-thousander
This is a three-dimensional nonogram. The first ten squares depict the layers of a $10\times10\times10$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules:
If a ...
10
votes
1answer
306 views
3D nonogram – What's in the box?
This is a three-dimensional nonogram. The first six squares depict the layers of a $6\times6\times6$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules:
The grid ...
10
votes
1answer
473 views
3D nonogram – What's going on?
This is a three-dimensional nonogram. The first six squares depict the layers of a $6\times6\times6$ cube. The final square gives the enumerations for the Z-axis, top to bottom. Some rules:
The grid ...
22
votes
1answer
580 views
How can this fractal shape perfectly cover a certain platonic solid?
The following fractal shape has a surprising property:
This two-dimensional shape can be folded onto the surface of a regular polyhedron (one of the five platonic solids) in a way that perfectly ...
7
votes
1answer
182 views
Nono-Cube: Approach at Your Own Risk
Inspired by jafe's 3D nonograms :)
Answer is one word.
This puzzle is a part of Ooohh, it all makes sense now! :D
4
votes
3answers
188 views
Missing informations for the architect
An architect wants to plan the creation of a house, but he has only two perspectives, one from the left and one from the front.
The house consists of concrete cubes. All concrete cubes must be ...
14
votes
1answer
879 views
3D nonogram – Name the object
This is a 3D nonogram. The first five boxes represent the five layers of a $5\times5\times5$ cube, and the last box shows the enumerations for the Z-axis. (Note that 11 means two stretches of length ...
22
votes
1answer
600 views
3D nonogram, beginner's edition
Trying out the concept of 3D nonograms. This one should be pretty simple.
Name the depicted object.
12
votes
3answers
667 views
3D Crossword, Cryptic, Statue View & Maze
The following image depicts the layers of a $5\times5\times5$ cube. Using 3-dimensional thinking, can you find the way out of the cube?
Empty version with no crossword numbers
Empty version ...
10
votes
1answer
300 views
Is this 3d Sudoku possible?
I was looking at images of 3d Sudoku's on Bing, because I was looking for a $9\times9\times9$ Sudoku, where each horizontal, vertical left-right and vertical top-bottom plane was also a Sudoku.
...
15
votes
1answer
1k views
Can you cover a cube with copies of this shape?
The following shape has an interesting property:
It is possible to map multiple copies of
this shape onto the surface of a cube in a way that perfectly covers the entire cube with no gaps and no ...
100
votes
1answer
7k views
How can this shape perfectly cover a cube?
The following shape:
can be folded onto the surface of a cube in a way that perfectly covers the entire cube with no gaps and no overlaps.
How can this be done?
9
votes
2answers
1k views
Create a cube from identical 3D objects
The diagram is the outline of the surface of a 3D object. Several objects, like the one created from this given surface, may be used to create a cube.
Let me know if you need more clarifications to ...
0
votes
1answer
105 views
what 3D shape can be used to make any 3D shape when combined With itself? [closed]
Looking to create a puzzle / representation of any 3D shape using smaller 3D shape. Is there some sort of shape / ultimate 3D shape that can make any other 3D shape. Like a pyramid or sphere or cube ...
7
votes
2answers
282 views
Unknown 5-pieces cube puzzle - help recognize
I have strange 5-pieces cube puzzle which I can't solve for a long time. I don't know name of the puzzle and can't google it. I'm not sure that there are all pieces. Can you help to recognize it?
...
14
votes
2answers
650 views
3D Masyu - A Die
Fold this net into a cube and solve this 3D Masyu.
The original Masyu rules apply. In addition, question mark '?' should be replaced by either a black or white circle.
Side note: Yeah, it's almost ...
13
votes
4answers
602 views
Color the cubes, then assemble them to form a larger cube
Goal: Paint 27 cubes using three colors (for example, red, yellow, and blue), so that you can form a 3x3x3 cube with all surfaces in red (for example), a 3x3x3 cube all in yellow, and a 3x3x3 cube all ...
8
votes
2answers
210 views
What is the largest number of cubes that can be cut?
Consider a cube made up of 27 unit cubes. If you consider a plane going through the middle of the larger cube it cuts through a number of the unit cubes. The number of cubes that are cut depends on ...
7
votes
1answer
157 views
6 piece mystery puzzle help!
So I have NO CLUE how to put this back together. I don't even remember what it looks like or what it's even called. I took it apart 3 years ago and it's still driving me crazy. Anyone have any ideas?!?...
18
votes
2answers
2k views
Maximal-volume cube net from unit square paper
Given a square piece of paper (say 1x1), what is the largest cube net you can cut out of it?
('largest' meaning with maximal volume; 'net' meaning it's possible to fold into a cube (somehow))
This ...
6
votes
1answer
438 views
Six-piece, two-tone wooden puzzle
We've had this puzzle for ages and I can't find a solution anywhere. I have vague memories of it being a cross but can't be sure.
I've searched everywhere online and in the house for a solution, can ...
8
votes
3answers
903 views
How many $2 \times 2 \times 1$ blocks can you put in a $3 \times 3 \times 3$ cube?
How many $2 \times 2 \times 1$ blocks can you put in a $3 \times 3 \times 3$ cube?
And what is the way to put them?
Of course the blocks can't overlap.
I just remembered this nice simple ...
2
votes
1answer
267 views
Wooden Snake Puzzle - logic behind solution
I refer to the wooden snake puzzle in this post:
Wooden Snake Puzzle
I notice that there are 6 solutions to the 4x4x4 snake, which start respectively as follows:
FRB… (↗→↙…, which is also the ...
