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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4
votes
1answer
234 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 ...
12
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1answer
257 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, ...
7
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1answer
225 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 ...
13
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3answers
484 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? ...
20
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2answers
422 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,...
4
votes
1answer
156 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 ...
20
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3answers
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! ...
4
votes
2answers
638 views

What is the largest domino ring that can be made?

Taken from UK Bebras Computational Thinking Challenge I am particularly interested to see how you can go through this systematically as opposed to using trial and error. Clarification edits: The ...
3
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1answer
145 views

4 walls of domino tower

How can I rearrange the domino tiles below so that all vertical columns has 0,1,2,3,4,5,6. While all the horizontal rows has 0,1,2,3,4,5,6 + duplicate ?
9
votes
2answers
338 views

Cover the terrace with “slashed” tiles

Peter has a rectangular terrace with integer sides. He plans to tile this terrace, with the ultra-modern 'slashed tiles". Each tile is a $2\times 1$ rectangle, with a diagonal, called its "slash". A ...
37
votes
6answers
3k views

One rectangle, indivisible

Here is a rectangle made out of 2x1 dominoes: It can be divided along a line into two smaller rectangles: What is the smallest (in area) rectangle of (edit) multiple 2x1 dominoes that cannot be ...
6
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1answer
1k views

Domino Gridlock

We have a 5x5 grid: We also have some dominoes, 1 of each type with numbers 1 to 6 on each side. So we have the dominoes 1 | 1 1 | 22 | 2 1 | 32 | 33 | 3 1 | 42 | 43 | 44 | 4 1 | 52 | 53 | 54 | 55 | ...
6
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1answer
262 views

Dominoes With Letters

I have a set with 26 special domino stones. Every stone carries a lower case Latin alphabet letter and an upper case Latin alphabet letter: ...
11
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5answers
950 views

The First Lady's Dominos

I went to visit a friend the other day, and was invited inside. When I entered, I spied an arrangement of various dominos, upon the table. They were not arranged, standing up, as if she had been ...
5
votes
3answers
927 views

Domino tile possibilities

I own a normal domino game with 28 tiles. Each tile carries two of the numbers [0, 1, 2, 3, 4, 5, 6] (where 0 represents blank). During cleanup five pieces fell out of the box. Two of them showed ...
0
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3answers
994 views

Find the missing domino

In my last school-class I did a logic-test with 48 exercises about finding the missing dominoes. I'm sure about 47, but this one broke my head, and I don't know yet the answer:
6
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1answer
2k views

Arranging all the Dominos

Given a Double Twelves Domino Set, prove that the dominos can be arranged in a valid formation such that placement follows the domino placement rules, namely: A domino can be placed with the short ...
8
votes
2answers
664 views

Dominoes on a chessboard

Mary has a box with special $2\times1$ dominoes. Each dominoe has two red corners and two blue corners, and these dominoes come in two different types: The first type has the lower left and the upper ...
6
votes
1answer
201 views

Is there another name or site for this “Dominotion” puzzle?

I discovered this very old Javascript game in my old bookmarks. It's a great puzzle. http://www.math.ucla.edu/~tom/Games/dominotion.html Does anyone know another name for this puzzle or a site or ...