SimonSkill·Free to play
Concentration
Match every pair of cards in as few flips and as little time as possible.
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ConcentrationScore0
Your best0
Time0:00
Keyboard & touch controls
Click / TapFlip a cardSpace / PEEKReveal every card brieflyPPause
How to play Concentration
Flip two cards at a time
Click or tap a card to turn it face-up, then flip a second. If the pictures match, the pair stays revealed; if not, both flip back down after a moment.
Memorize every miss
A miss is not a failure - It is free information. Every card you see and fail to match is a card you now know the location of, so watch both cards on every flip.
Beat the level timer
Each level runs on a clock. Clear every pair before it hits zero to advance, and finish faster to bank more points from the time that remains.
Chain matches for streak bonuses
Matching pairs back-to-back without a miss builds a streak, and each consecutive match is worth more than the last. One sloppy guess resets the bonus.
Clear the growing grids
The board starts at six pairs and swells level by level to ten. Your moves are counted the whole way - Fewer flips means a sharper score, so guess less and know more.
This is our browser edition, adapted from ARCADENOW. Its artwork, tuning and controls may differ from other games with similar rules. Guest personal bests stay in this browser. Signed-in players can also save scores and play history to their private dashboard; there is no global leaderboard. Read about controls and local storage.
Choose a related challenge
Remembering a pair is useful even after you turn the cards back over. Simon changes spatial recall into a growing sequence of lights and tones.
What Concentration is like to play
Concentration is the card table's oldest bet: that you can remember where anything is for more than five seconds. Flip two cards - Match and they stay, miss and they slam face-down while your brain swears it will remember next time. It will not, and that is the fun. Our version starts you on a friendly six-pair grid and grows the board level by level to ten pairs, with a timer squeezing every round and a move counter keeping you honest. Chain matches without a miss and streak bonuses pile up fast, which turns tidy recall into real scoring fuel. Cards flip with a click or a tap, so it plays as well on a phone in a queue as on a desktop between meetings. Every game shuffles a fresh layout, so what improves across attempts is your memory - Not your luck with a familiar board.
Concentration at a glance
| Genre | Puzzle Games |
|---|---|
| Challenge | Short-term memory, long-term shame |
| Pace | Timer squeezes, grid grows |
| Original era | Concentration (1959) to arcade |
| Players | Single player |
| Controls | Click / Tap, Space / PEEK |
| Cost | Free, with no account and no download |
Where Concentration came from
Matching pairs from face-down cards is one of the oldest parlor games on record, played with an ordinary deck under names like Concentration and Pelmanism - The latter borrowed from the Pelman Institute, a famous memory-training school of the early 1900s. The rules survived unchanged for generations because they need nothing but cards and the human inability to remember where anything is.
Television made the game a household ritual when NBC's Concentration debuted in 1958 and ran for a remarkable fifteen years, hiding a rebus puzzle behind the matched prizes. Milton Bradley boxed the idea for families as Memory in 1966, and decades later the brain-training boom - led by Nintendo's Brain Age in the mid-2000s - Recast pair-matching as a daily mental workout, which it had quietly been all along.
The browser is the game's best home yet: instant shuffles, honest move counting, and timers no cardboard box could enforce. This version adds growing grids, streak scoring, and a fresh shuffle every game, turning the old parlor bet into something you can lose gracefully anywhere.
Ways people play Concentration
- Pelmanism with a full deck
- The classic version: all 52 cards face-down, matching by rank and color. Brutal on the memory and still a favorite test between card-table rivals.
- TV Concentration rules
- Matched squares reveal pieces of a rebus puzzle, so the real contest is solving the picture-phrase before your opponent does.
- Kids' picture Memory
- The Milton Bradley formula from 1966 - Chunky tiles, friendly artwork, and the humbling experience of losing to a five-year-old.
- Moving-card memory
- Digital variants that shuffle or swap face-down cards between turns, punishing static memory and rewarding players who track motion.
Concentration questions and answers
How is Concentration scored?
Points come from matched pairs, streak bonuses for consecutive matches, and the time left on the clock when you clear a level. Fewer moves and faster finishes mean bigger scores.
What happens when the timer runs out?
The run ends. Each level must be fully cleared before its clock hits zero, which is what turns a gentle matching game into an arcade sprint.
How big do the grids get?
You start with six pairs and the board grows level by level up to ten pairs - Twenty cards to track while the timer breathes down your neck.
How do streak bonuses work?
Every pair matched without a miss in between raises your streak, and each streak level pays more points per match. One wrong flip resets it, so certainty is worth real money here.
Is Concentration just luck?
The first few flips are chance - After that, every reveal is information. Two runs on the same size of board can differ by dozens of moves, which is exactly the skill the move counter measures.
Does the board shuffle differently every game?
Yes - That is the point. Every game deals a new card layout, so the only advantage you can build is recall.
Can I play Concentration on my phone?
Perfectly. Tap to flip cards, exactly as you would click - The grids are sized for thumbs, and a bus queue is this game's natural habitat.
Is Concentration free to play?
Completely free in your browser, with no download and no signup. Your only investment is the pairs you swear you remembered.
If you like Concentration, try these next
Four games from the same shelf, each with its own pace. The one-line summaries are how their own pages describe them.
| Game | What it is like | Pace | Play |
|---|---|---|---|
| Simon | Watch, remember, repeat - One note longer every round. | Sequences lengthen, playback speeds up | Play |
| The Impossible Quiz | Every question is fair. Your assumptions are not. | Ten seconds of doubt at a time | Play |
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Separate deduction, information gathering and board planning before choosing your next move.
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