Concentration Tests

Perform two actions at the same time. You must follow the movement of a circle with your finger or mouse while simultaneously answering questions. Use both hands: press the spacebar on a PC or tap the blue banner/button on a smartphone to indicate if the statement is false. Scoring: 10 points for each correct answer. Your score resets to 0 if you make a mistake. Maximum score: 110 points.

Cognitive skills: divided attention, hand-eye coordination, working memory, reaction speed, multitasking.

Match all pairs of Mahjong tiles. You can select a tile only if there is an open space either to its left or right. If the game becomes blocked (no more pairs available), you may switch to a different layout without penalty, provided you haven't missed any pairs.

Cognitive skills: visual memory, attention, pattern recognition, problem-solving, strategic planning.

Complete a Binary Puzzle grid. This game is also known as Takuzu or Binoxxo. You must validate each completed grid to earn points. Penalty: -10 points for each unvalidated grid. Can you score more than 72 points?

Cognitive skills: logical reasoning, pattern recognition, attention, problem-solving, planning.

Find the hidden card after several permutations of 4 cards. You have 90 seconds to identify as many hidden cards as possible. The score increases with each level.

Cognitive skills: working memory, attention, visual tracking, pattern recognition, concentration.

Find the correct puzzle piece that fits perfectly into another piece. A bonus is awarded if you successfully place 10 pieces.

Cognitive skills: spatial reasoning, visual perception, problem-solving, attention, pattern recognition.

A grid with symbols is displayed. Answer questions about the location of specific symbols or the number of symbols. Pay close attention to negations in the questions. Time limit: 90 seconds. Scoring: 5 points for each correct answer, -6 points for each wrong answer.

Cognitive skills: attention, visual scanning, working memory, logical reasoning, concentration.

A very simple game: reconstruct pairs from the elements displayed on the page. Time limit: 60 seconds. Each correctly matched pair earns 1 point. Bonuses are awarded at the end of each table: 5, 10, and 15 points.

Cognitive skills: visual memory, attention, pattern recognition, concentration, short-term memory.

Add two grids together to create a third grid. The addition is performed square by square like normal addition, except that adding two blue squares results in a white square. The term XOR (exclusive OR) refers to a logical operator in computing. Scoring: 2 points for each correct square in a completed grid. Time limit: 90 seconds.

Cognitive skills: logical reasoning, pattern recognition, attention, problem-solving, computational thinking.

Create burgers by placing the recipe ingredients in the correct order. Each correctly assembled burger is worth 8 points. Time limit: 40 seconds to achieve the highest score.

Cognitive skills: sequential thinking, attention, planning, working memory, problem-solving.

In this fast-paced cognitive game, your goal is to identify the color of the text, not the word it spells. The twist: the word itself is the name of a color, creating a mental conflict. For example, if the word “red” is written in green, the correct answer is green. Scoring: 🟢 1 point for each correct response, 🔴 –2 points for every mistake.

Cognitive skills: attention, cognitive flexibility, inhibitory control, processing speed, visual discrimination.

Find the solitaire tile from a set of tiles. Time limit: 60 seconds to achieve the best score. The score increases in multiples of 2: the first tile found gives 2 points, the second 4 points, and so on.

Cognitive skills: visual memory, attention, pattern recognition, concentration, working memory.

Find all the intruders in a 3x3 grid — images that do not match the reference image. Time limit: 60 seconds to achieve the best score. Scoring: +1 point for each correct answer, -2 points for each incorrect answer.

Cognitive skills: visual discrimination, attention, pattern recognition, concentration, working memory.

Place numbers between 1 and 100 in the correct order. Time limit: 60 seconds to achieve the best score. You earn 1 point for each number correctly placed.

Cognitive skills: numerical reasoning, attention, sequencing, working memory, concentration.