Concentration

Unfortunately, I’m not too great at Concentration.

Concentration is a game requiring observation and memory skills, generally played with face-down cards, and the game involves flipping the cards face-up to reveal a matching pair.
The game of ‘Concentration’ is also commonly known as ‘Memory Match’, ‘Match’, ‘Matching Pairs’, ‘Memory’, ‘Pelmanism’, ‘Pexeso’, and ‘Pairs’.
When laying out the cards of a Concentration game ready for play, they are often arranged in a neat square pattern or other format to make memorising their location somewhat easier.
The basic game play of Concentration is that each player flips over two cards in their turn, and if they match, they collect the pair and have an extra turn, but if the two cards do not match, the cards are turned back over facing down.
A good strategy in Concentration is to first flip over the card that you are unsure of, before flipping the card that you are certain of, in case you remember incorrectly.

There are numerous forms of the game of Concentration, and the cards are often square in shape, although some simply using traditional playing cards, while others use unique printed designs that often contain pictures, however, each set will have the same colour and design on the back of each of the cards.
Children generally prefer to play the game of Concentration, and usually do well at the game, although adults do play to test their memorisation skills.
On the assumption that each already revealed card is memorised in a game of Concentration, the probability of flipping over a matching card can generally be defined through the formula 1/(t-1-n), where ‘t’ is the remaining cards in play and ‘n’ is the already revealed cards that are still in play.
The person with the most pairs at the end of a game of Concentration is deemed the winner, and while the game is typically played competitively with two or more players, it can be enjoyed by a single player aiming to flip the least amount of cards but revealing the most pairs, or to simply test their memory.
A Japanese version of the game of Concentration, known as ‘Kai-awase’ and made from painted clam shells, is said to have been played by the wealthy, as early as the 9th century.

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