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Questions tagged [dominoes]

A puzzle that involves tiles (or the concept of tiles) in the shape of 2x1 rectangles, divided into 2 squares, each containing 0 to 6 spots. It may require knowledge of general rules of the game, Dominos, or it may simply use the number of spots, on the tiles, as clues for a solution.

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Tile dominoes in a 3x10 space [closed]

How many ways are there to tile 1x2 (unmarked) dominoes in a 3x10 space? This is a harder version of Tile dominoes in a 2x10 space, since that was too easy.
qwr's user avatar
  • 989
7 votes
1 answer
371 views

Progressive matrix of dominoes

Here is another unsolved puzzle from Reddit. What is the pattern on the final domino?
Redditposter's user avatar
1 vote
1 answer
594 views

Tile 1x2 dominoes in a 2x10 space

How many ways are there to tile unmarked 1x2 dominoes in a 2x10 space? Bonus: What if the dominoes were identical and had pips on their front (face-up), so they could be distinguished by 180 degree ...
qwr's user avatar
  • 989
9 votes
3 answers
1k views

Tiling a chessboard

Say I have an eleven by eleven chessboard, so there's 121 squares total. I remove the centermost piece so there's 120 pieces. I want to tile the chessboard with 1x4 or 4x1 pieces in a way that none of ...
Joey's user avatar
  • 203
2 votes
2 answers
143 views

Friday's Fujisan Problem

Four Shinto Priests have traveled from their various prefectures in pilgrimage to the top of Mount Fuji. You must find pathways for them to move up and down the mountain until they can all achieve the ...
Don Kirkby's user avatar
  • 2,737
3 votes
2 answers
210 views

Wednesday's Fujisan Problem

Four Shinto Priests have traveled from their various prefectures in pilgrimage to the top of Mount Fuji. You must find pathways for them to move up and down the mountain until they can all achieve the ...
Don Kirkby's user avatar
  • 2,737
9 votes
3 answers
357 views

Monday's Fujisan Problem

Four Shinto Priests have traveled from their various prefectures in pilgrimage to the top of Mount Fuji. You must find pathways for them to move up and down the mountain until they can all achieve the ...
Don Kirkby's user avatar
  • 2,737
2 votes
1 answer
91 views

Friday's Capturing Donimoes Problem

I just published my Donimoes collection of new games and puzzles as a book, so I'm celebrating by posting a few bonus problems this week. The puzzle is Capturing Donimoes, which I designed to feel ...
Don Kirkby's user avatar
  • 2,737
2 votes
1 answer
93 views

Wednesday's Capturing Donimoes Problem

I just published my Donimoes collection of new games and puzzles as a book, so I'm celebrating by posting a few bonus problems this week. The puzzle is Capturing Donimoes, which I designed to feel ...
Don Kirkby's user avatar
  • 2,737
7 votes
1 answer
186 views

Monday's Capturing Donimoes Problem

I just published my Donimoes collection of new games and puzzles as a book, so I'm celebrating by posting some bonus problems this week. Capturing Donimoes is a puzzle I designed to feel like a safari ...
Don Kirkby's user avatar
  • 2,737
2 votes
1 answer
277 views

No-Luck Riomino

Kris Burm's Riomino (or Tashkent Domino) is played with 25 identical dice that look like this: The actual rules are as follows. Each player rolls 12 dice that then serve as their "dominos" ...
Parcly Taxel's user avatar
  • 7,820
3 votes
1 answer
231 views

Divide a board into two pieces without cutting a domino

Saw this question in the book, "A Moscow Math circle" by Dorichenko. Eighteen 2x1 dominoes cover a 6x6 board without overlapping each other or the sides of the board. Prove that, for any ...
Hemant Agarwal's user avatar
1 vote
1 answer
118 views

Friday's Bee Donimoes Problem

A swarm of dice bring nectar back to the hive from a domino garden. I just finished adding a new puzzle race game to Donimoes, my collection of domino puzzles and games, so I thought I would post a ...
Don Kirkby's user avatar
  • 2,737
3 votes
1 answer
119 views

Wednesday's Bee Donimoes Problem

A swarm of dice bring nectar back to the hive from a domino garden. I just finished adding a new puzzle race game to Donimoes, my collection of domino puzzles and games, so I thought I would post a ...
Don Kirkby's user avatar
  • 2,737
4 votes
1 answer
158 views

Monday's Bee Donimoes Problem

A swarm of dice bring nectar back to the hive from a domino garden. I just finished adding a new puzzle race game to Donimoes, my collection of domino puzzles and games, so I thought I would post a ...
Don Kirkby's user avatar
  • 2,737
1 vote
1 answer
107 views

4-DominoBrane #002 "81"

Here is another domino puzzle. This is considerably easier than puzzle set earlier this week, and definitely doesn’t need bifurcation. This uses 4-Dominoes (all the normal dominoes, minus any with a 5 ...
Konchog's user avatar
  • 939
1 vote
1 answer
139 views

4-DominoBrane Exclusive

Here is a smaller puzzle from the set of domino puzzles, I call DominoBrane. This uses 4-Dominoes (all the normal dominoes, minus any with a 5 or a 6). Each domino ...
Konchog's user avatar
  • 939
4 votes
1 answer
218 views

DominoBrane - Chained Domino Fitting

So I've been working on a set of domino puzzles, I call DominoBrane recently, it's sort of similar to Dominosa - except that, unlike Dominosa, the rules of the ...
Konchog's user avatar
  • 939
15 votes
5 answers
2k views

Domino tiling on 8x8 checkerboard with four squares removed

I once posted this problem on the (now deleted) Area 51 Math Puzzles proposal. It was well-received there, but obviously I didn't get an answer. I still don't know the answer, and I'm not even sure if ...
Bubbler's user avatar
  • 16.4k
3 votes
3 answers
1k views

Sequence of domino tiles - next term's difference of pips

The problem is as follows: A set of domino tiles is placed with one next to another as indicated in the diagram below. If the upper half of the next piece is labeled x and the lower half is labeled ...
Chris Steinbeck Bell's user avatar
1 vote
2 answers
459 views

Does a systematic way to solve a magic square made up of domino pieces exist?

I've found this problem in an older book which goes by the name of Logical aptitude circa 2019. It doesn't list any other markings. The thing is no matter how I attempt to look into it, I'm trapped in ...
Chris Steinbeck Bell's user avatar
23 votes
2 answers
554 views

Dominoroto-toto

Consider a domino tiling of a plane rectangle of size $n \times m$. (Obviously, at least one of $m$ and $n$ has to be even for that to be possible.) I personally hate those because they tend to look ...
Paul Panzer's user avatar
  • 10.3k
7 votes
1 answer
148 views

Minimal 2D pattern for domino tiles where each tile touches three others

Inspired by The five problems of the six domino tiles, where one of the tasks was to place six domino tiles so that each tile touches three others (corner / edge touches don't count). My solution ...
Glorfindel's user avatar
  • 28.1k
14 votes
2 answers
930 views

The five problems of the six domino tiles

Here is a set a problems (regarding domino tiles) of a famous Portuguese newspaper weekly magazine. For each problem you have $6$ domino tiles and the goal is always to place them touching each other ...
Pspl's user avatar
  • 2,272
11 votes
3 answers
514 views

Perfect Latin Squares

The following Latin Square has an interesting property: there are 6*5=30 possible “ordered dominos” containing distinct digits, each occurring exactly once horizontally and exactly once vertically. ...
happystar's user avatar
  • 7,770
6 votes
2 answers
204 views

Friday's Mirror Donimoes Problem

Help four ghosts find each other in a haunted house. I just finished adding a new puzzle to Donimoes, my collection of domino puzzles and games, so I thought I would post a few bonus problems here. ...
Don Kirkby's user avatar
  • 2,737
4 votes
1 answer
149 views

Wednesday's Mirror Donimoes Problem

Help four ghosts find each other in a haunted house. I just finished adding a new puzzle to Donimoes, my collection of domino puzzles and games, so I thought I would post a few bonus problems here. ...
Don Kirkby's user avatar
  • 2,737
7 votes
3 answers
281 views

Monday's Mirror Donimoes Problem

Help four ghosts find each other in a haunted house. I just finished adding a new puzzle to Donimoes, my collection of domino puzzles and games, so I thought I would post a few bonus problems here. ...
Don Kirkby's user avatar
  • 2,737
7 votes
1 answer
316 views

Catch 21: Lies in Advertising

I posted a few Dominosa puzzles this week to celebrate adding Dominosa to my Donimoes collection of domino puzzles and games. Now, I want to finish the week with something a little different. What ...
Don Kirkby's user avatar
  • 2,737
7 votes
2 answers
484 views

Friday's Dominosa Problem

Dominosa is a logic puzzle with a similar feel to Sudoku, and I've recently added it to Donimoes, my collection of domino puzzles and games. Given a grid of numbers, you have to lay out the dominoes ...
Don Kirkby's user avatar
  • 2,737
9 votes
2 answers
259 views

Wednesday's Dominosa Problem

Dominosa is a logic puzzle with a similar feel to Sudoku, and I've recently added it to Donimoes, my collection of domino puzzles and games. Given a grid of numbers, you have to lay out the dominoes ...
Don Kirkby's user avatar
  • 2,737
5 votes
2 answers
238 views

Monday's Dominosa Problem

Dominosa or Domino Solitaire is a logic puzzle with a similar feel to Sudoku. Given a grid of numbers, you have to lay out the dominoes so they match the numbers, without duplicated or missing ...
Don Kirkby's user avatar
  • 2,737
-1 votes
2 answers
123 views

What numbers should A & B be? [closed]

1 4 3 1 A 2 2 6 4 B What numbers should A & B be, with each vertical column being a domino tile.
IDontLikeItHere's user avatar
3 votes
1 answer
216 views

A game of cross-dominos

The grid above shows the final layout of a domino game played with a standard $28$-tile (dominos $0-0$ to $6-6$). The first domino played, the $4-4$ double is given, and solvers must complete the ...
user avatar
2 votes
3 answers
372 views

Place 28 dominoes into a 7x8 rectangle

A standard set of double-six dominoes has 28 tiles with 2 numbers on each side from 0 to 6. Tiles can be placed next to each other if all the touching numbers match (from all 3 adjacent sides). Can ...
Dmitry Kamenetsky's user avatar
4 votes
1 answer
414 views

Place 28 dominoes in a loop

A standard set of double-six dominoes has 28 tiles with 2 numbers on each side from 0 to 6. Tiles can be placed next to each other if the numbers at each end match. Can you place all the 28 tiles such ...
Dmitry Kamenetsky's user avatar
11 votes
2 answers
900 views

Piece de Resistance - Two Boxes, Two Boxes of Letters

Two - Boxes, Two Boxes of Letters This puzzle is part of the "Piece de Resistance" series. Go back to Part 1 (Ace) for the story.Ace Two Three Four Five ... Out of Character: Finally, a ...
Omega Krypton's user avatar
0 votes
1 answer
362 views

Introducing WorDonimoes$^2$

@Don Kirkby have designed a set of dominoes puzzles that they call Donimoes. You slide the dominoes like the cars in Nob Yoshigahara's Rush Hour puzzle, always along their long axis. I have altered ...
Omega Krypton's user avatar
8 votes
1 answer
137 views

Fridays's Unmatched Donimoes Problem

I've designed a set of dominoes puzzles that I call Donimoes. You slide the dominoes like the cars in Nob Yoshigahara's Rush Hour puzzle, always along their long axis. The goal is to slide all the ...
Don Kirkby's user avatar
  • 2,737
5 votes
1 answer
144 views

Thursday's Unmatched Donimoes Problem

I've designed a set of dominoes puzzles that I call Donimoes. You slide the dominoes like the cars in Nob Yoshigahara's Rush Hour puzzle, always along their long axis. The goal of Unmatched Donimoes ...
Don Kirkby's user avatar
  • 2,737
5 votes
1 answer
134 views

Wednesday's Unmatched Donimoes Problem

I've designed a set of dominoes puzzles that I call Donimoes. You slide the dominoes like the cars in Nob Yoshigahara's Rush Hour puzzle, always along their long axis. The goal of Unmatched Donimoes ...
Don Kirkby's user avatar
  • 2,737
6 votes
2 answers
138 views

Tuesday's Unmatched Donimoes Problem

I've designed a set of dominoes puzzles that I call Donimoes. You slide the dominoes like the cars in Nob Yoshigahara's Rush Hour puzzle, always along their long axis. The goal of Unmatched Donimoes ...
Don Kirkby's user avatar
  • 2,737
14 votes
2 answers
603 views

Monday's Unmatched Donimoes Problem

I've designed a set of dominoes puzzles that I call Donimoes. You slide the dominoes like the cars in Nob Yoshigahara's Rush Hour puzzle, always along their long axis. Goal Slide all the dominoes into ...
Don Kirkby's user avatar
  • 2,737
4 votes
1 answer
292 views

Tactical Domino Placement Game

Alice and Bob take turns to place regular dominoes into a $7\times8$ board. The first player who cannot go loses. Is there a winning strategy for either player? Note that in this version the pips on ...
JMP's user avatar
  • 35.6k
12 votes
1 answer
333 views

A Domino Rectangle

Can you arrange a standard set of $28$ dominoes into a rectangle of $7\times8$, where each of the 8 rows sum to $21$ and each of the 7 columns sum to $24$? Image from WikiPedia. Or, alternatively, ...
JMP's user avatar
  • 35.6k
8 votes
1 answer
361 views

Domino Tiling Game

Two players are presented an $n\times n$ grid. They take turns placing a piece on the board until no more moves are possible. The last player able to make a move is the winner. The pieces are $2\times ...
Riley's user avatar
  • 14.5k
13 votes
3 answers
503 views

How many tilings by dominoes of this region?

Here's a shape that could be tiled by dominoes. Without the fault line there are 64 tilings. With fault line how many possible tilings are there? ...
john mangual's user avatar
20 votes
2 answers
547 views

A puzzle with dominoes

I've got a puzzle using dominoes for all here at Puzzling. I came up with it while playing around a few days ago, and I know it can be solved. It may not be a new idea, but to the best of my knowledge,...
user15859's user avatar
  • 303
4 votes
1 answer
169 views

Dominoes where NO two connected tiles have a number in common

Take the following set of ten dominoes: 0 | 1, 0 | 2, 0 | 3, 0 | 4, 1 | 2, 1 | 3, 1 | 4, 2 | 3, 2 | 4, 3 | 4 Arrange the dominoes With Rules : NO two connected tiles have a number in common. 2 ...
Jamal Senjaya's user avatar
22 votes
3 answers
1k views

Introducing Domidoku!

Come one, come all! Come see the new type of logic puzzle, the Domidoku! Here's a sample for all to try! The process is simple! First you solve the Sudoku and then you solve the Dominosa! ...
dcfyj's user avatar
  • 7,756