Questions tagged [grid-deduction]
Puzzles such as Sudoku or Kakuro, where the final state of a pre-existing grid must be deduced logically through clues placed within and/or around the grid. For puzzles where you are given a list of clues which can be used to compose a grid to solve them logically, use the [logic-grid] tag instead.
245
questions
2
votes
1answer
30 views
IBaNTsJTtStPMP! #2
IBaNTsJTtStPMP means "I'm Bad at Naming Things, so Just Try to Solve this Patterned Masyu Puzzle!".
The original Masyu rules apply.
Make a single loop with lines passing through the ...
6
votes
1answer
94 views
Grid puzzle solutions
I have a simple grid puzzle:
Example:
| X | Y | X |
| Y | X | Y |
| Y | X | Y |
The move is defined as a row or a column move. So when you move one cell, ...
8
votes
1answer
93 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
74 views
Masyu turned vanilla
Tried to make something clever, but it didn't work out so you're getting a vanilla masyu instead.
Normal masyu rules apply.
12
votes
1answer
609 views
A bicolour masyu
This is a bicolour masyu puzzle. Instead of making one continuous loop, the goal is to make two separate loops, one blue and one red. The coloured circles must be used for the loop of the same colour, ...
12
votes
1answer
176 views
Masyu-making game
Two players are playing a game on a $4\times4$ board. The players take turns adding either a white circle or a black circle into any empty square, so that the board makes a solvable masyu puzzle (with ...
4
votes
1answer
79 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
2answers
921 views
3D? No-no! 3 Sides
Introducing the Isometric Nonogram!
α) "Boar"ing Definition [oink]
Column: Blue Part + Green Cell
Row: Yellow Part + Green Cell
Adjacent/ Continuous cells: Purple Cell + any of the Orange ...
5
votes
2answers
116 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 ...
1
vote
1answer
80 views
How Should I Go About Answering Square Spin Puzzles?
The Square Spin series of puzzles is a bit abstract. There is quite a lot for newcomers to digest and getting started may be daunting. Even if you thoroughly read the rules and intend to attempt one ...
7
votes
2answers
230 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 ...
14
votes
2answers
907 views
Four-dimensional light bulbs
In reaction to Three-dimensional light bulbs - rules are same (almost)
This is a four-dimensional Akari puzzle (also known as Light Up). The nine squares represent the layers of a $3\times3\...
11
votes
1answer
645 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 ...
8
votes
2answers
303 views
Square Spin #4: Rude Awakening
Square Spin History: #1>#2>#3>#4
New Rule
This puzzle introduces a new square type:
Lonely squares (Ly)
Lonely squares
This type of square contains a box and it is ...
6
votes
1answer
168 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 ...
6
votes
1answer
187 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....
6
votes
1answer
194 views
Square Spin #3: Hickory Dickory Dock
Square Spin History: #1>#2>#3
Recap of the Rules
Basic rules from #1
Ambiguity, Un and Re squares from #2
Problem #3: Hickory Dickory Dock
The mouse ran up the clock.
...but ...
8
votes
1answer
306 views
I'm Bad at Naming Things, so Just Try to Solve this Patterned Masyu Puzzle!
$\hskip1in$
The original Masyu rules apply.
Make a single loop with lines passing through the centers of cells, horizontally or vertically. The loop never crosses itself, branches off, ...
21
votes
2answers
1k views
Can you create a free-floating MASYU puzzle?
Rules of MASYU, for those unfamiliar: https://www.gmpuzzles.com/blog/masyu-rules-and-info/
Hey guys! So I just discovered this really cool puzzling site called the Puzzling Stack Exchange (puzzling....
6
votes
1answer
164 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
296 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
459 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 ...
7
votes
1answer
176 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
8
votes
2answers
266 views
Not Just Black and White
Answer for this puzzle is one word. Have fun!
Highlighted parts are where I realised I have clued it wrong... Sorry for all this inconvenience!
Hint:
usefulness level 1
usefulness level 2
This ...
7
votes
2answers
235 views
Square Spin #2: Climb the Mountain!
Square Spin History: #1>#2
New Rules
This puzzle introduces two new square types:
Unmovable squares (Un)
Replaceable squares (Re)
Plus the concept of ambiguity!
...
5
votes
2answers
198 views
You Sign Me Right Round (Extended Edition)
I wanted to ask more questions about variations on This Problem. If you hadn't seen that one, check it out. It's required reading (and probably more fun).
In the original problem, these were the ...
16
votes
3answers
456 views
Tiling a square with rectangles
Tile completely this 47 x 47 square with 52 rectangles. Each rectangle must contain precisely one numbered cell, and that number must be the area or perimeter of the rectangle it finds itself in.
...
14
votes
1answer
868 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 ...
21
votes
1answer
583 views
3D nonogram, beginner's edition
Trying out the concept of 3D nonograms. This one should be pretty simple.
Name the depicted object.
8
votes
2answers
210 views
You Sign Me Right Round
This is a 9x9 grid, with a sign in the center cell like shown. You can add signs to this grid one at a time following these rules:
Each sign placed must point to the next sign placed
Placed signs ...
12
votes
3answers
640 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 ...
2
votes
5answers
790 views
Very tricky nonogram - where to go next?
I've become somewhat addicted to Simon Tatham's "Pattern" (nonogram) puzzles recently. I thought I was becoming fairly adept with them, but this unusually difficult one has me stumped. I've got as far ...
17
votes
4answers
938 views
A letter from Mr. Pirate, Mr. Roller, and Mr. Knight
Though I don't think it will help, you may check with the beginning of my story concerning Red Herring Puzzle Club.
It seems like it's been a long time since I tried to enter the R.H.P.C. As you may ...
9
votes
1answer
205 views
Vertical and Horizontal Bars - An Instructionless Puzzle
Study the 2 examples given on the left and solve the puzzle on the right!
The solution for each puzzle can be uniquely determined.
2
votes
1answer
178 views
Solve the pattern! (game)
Okay, so this is based off of https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/pattern.html
And, my cousin made a random pattern and gave it for me to solve.
Unfortunately, the logic is ...
13
votes
1answer
243 views
Statue View: 2, 3, 5, 7
This is another Statue View puzzle. It's easily the hardest of the three I've made, so I recommend trying the other two as practice first.
Rules of Statue View:
Shade some cells of the grid to form ...
12
votes
1answer
237 views
Statue View: Raindrops
This is a Statue View puzzle, an original invention combining two logic puzzle genres: Statue Park and Canal View. It is harder than my previous Statue View, so you may want to start there.
Rules of ...
19
votes
2answers
347 views
Statue View: Tetrominoes
This is a Statue View puzzle, an original invention combining two logic puzzle genres: Statue Park and Canal View.
Rules of Statue View:
Shade some cells of the grid to form the given set of pieces. ...
15
votes
1answer
475 views
Statue Park: Knight's Lines
This is a Statue Park puzzle.
Rules of Statue Park:
Shade some cells of the grid to form the given set of pieces. Pieces may be rotated or reflected.
Pieces cannot be orthogonally adjacent (though ...
8
votes
1answer
269 views
Statue Park: Five
This is a Statue Park puzzle (originally constructed for the 2019 24-Hour Puzzle Championship, as part of a Tarot card themed set -- no prizes for guessing which rank this puzzle was).
Rules of ...
5
votes
2answers
260 views
A game of cricket
This puzzle is part 14 of Gladys' journey across the globe. Each part can be solved independently. Nevertheless, if you are new to the series, feel free to start at the beginning: Introducing Gladys.
...
21
votes
2answers
355 views
Untitled, for Now
As you step into the gallery, you notice an interesting piece of art hanging on the wall.
"I like the piece, but what's with the title?" you ask the docent. "I'm used to obscure titles in modern art, ...
17
votes
3answers
997 views
Hexagonal Grid Filling
Fill in each blank white hexagon with a digit from 1 to 9. Each of the grey hexagons is the sum of the white hexagons around it, and all of the white hexagons that are around the same grey hexagon ...
5
votes
4answers
232 views
Fill the grid (pattern)
Can you guess what comes in place of the question mark?
Here's a text-based version of the table:
...
62
votes
4answers
4k views
Gerrymandering Puzzle - Rig the Election
The following graphic is a map of the country Mathlandia:
You are currently running for reelection, but the polls aren't exactly in your favor. Each square in this grid is a county. Counties with a ...
-4
votes
10answers
910 views
SafeCracker #3 - We've Been Blocked [closed]
Our Last Safe To Conquer
Ok, team, this one might give us a little trouble. Nothing we can't handle though... let's go...
This safe model is "The NevaCrak 9000" - the most secure safe there is.
...
5
votes
2answers
197 views
SafeCracker #2 - The Mission Continues
Thanks to an alert StackE user, we were able to get the first safe open.
Mission Details
This next safe is in a former employee's house. He is gone for now, so we have no time to spare.
We weren't ...
15
votes
2answers
2k views
Virus Detected - Please execute anti-virus code
Virus Detected!!!
Your computer, which is represented by the grid pictured, has been infected. The bugs are clearly marked. It's your job to inject your awesome anti-virus code in the proper computer ...
1
vote
3answers
227 views
Can someone solve this kakuro?
Can someone solve this? Please tell me how you did it.
Source: Puzzle Page app
13
votes
2answers
588 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 ...
