Domino is a game of chance that involves placing and knocking down tiles. It originated in Italy and spread to Austria, southern Germany and France. The game is played with a set of 28 tiles, which vary from 0 (or blank) to six pips.

It can also be played with a larger number of tiles; some people play with double-twelve domino sets (91 tiles) and others with double-nine domino sets (55 tiles).

There are many variations of the game. One of the most popular is “5s-and-3s”. This variation is played in pairs, and players try to attach a tile from their hand so that it appears at both ends of the end tiles already laid. Each time the sum of five or three tiles appears at either end of the existing ones, a point is scored.

Another variant is “5s-and-4s”. This version is played in teams of two and involves picking one tile from each player’s hand, then playing that tile onto one of the ends of those already laid. When all the dominoes have been played, the winner is the pair whose total sum of all the remaining tiles is least.

In addition to the traditional version of the game, there are several other forms of the game, including a re-named form that was developed by Thierry Denoual called “Train”. The game is played with 140 square tiles and is very similar to standard draw except that the tiles bend at 120 degrees to create 90-degree curved lines of play.

The domino chain concept is a great tool for achieving goal-oriented behaviors, like making a new habit or developing a skill. Just like a domino chain, the energy of each small change is transmitted to the next activity until the last domino falls.

Often, people will start a new habit or behavior that has a cascade of positive results in other areas of their life. For example, Jennifer Dukes Lee, a personal-development blogger, started to make her bed every day and found that she had begun to maintain other clean and organized habits in her home. This led to a shift in her identity-based beliefs and ultimately a better functioning home.

When she was asked about this, she told me that her new self-image had created a chain of positive consequences. For instance, she now has a much healthier diet.

She also now has a higher level of energy and is better focused. She is even able to complete tasks that she once could not do.

It’s easy to get distracted by the daily grind or focus on the wrong thing, but it’s crucial to keep a big picture in mind. This can help to prioritize your work and make decisions that are more effective in the long run.

For example, if you have a list of goals that you’re working on and they all have to be completed by the end of the month, it’s difficult to decide which one will give you the most benefits. But if you break down your goals into smaller pieces, it becomes easier to prioritize them.

Domino – A Habit-Opportunity Chain