# 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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### 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 ...
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### 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 ...
• 2,378
303 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 ...
• 2,378
78 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 ...
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84 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 ...
• 2,378
162 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 ...
• 2,378
154 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" ...
• 3,906
1 vote
161 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 ...
• 1,541
1 vote
111 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 ...
• 2,378
106 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 ...
• 2,378
138 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 ...
• 2,378
1 vote
103 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 ...
• 563
1 vote
132 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 ...
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### 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 ...
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### 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 ...
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### 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 ...
• 1,495
1 vote
257 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 ...
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### 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 ...
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### 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 ...
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### 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 ...
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### 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. ...
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### 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. ...
• 2,378
138 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. ...
• 2,378
263 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. ...
• 2,378
259 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 ...
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379 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 ...
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### 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 ...
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### 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 ...
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### 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.
192 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 ...
284 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 ...
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### 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 ...
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### 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 ...
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### 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 ...
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### 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 ...
• 2,378
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### 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 ...
• 2,378
124 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 ...
• 2,378
120 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 ...
• 2,378
571 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 ...
• 2,378
280 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 ...
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### 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, ...
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