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CARD PAIRS, NUMBER MEMORY, N-BACK, CHIMP TEST, REACTION TIME, SPEED MATH, STROOP
AGES 15+Cognitive-test games for adults built on the standard psychometric paradigms used in working-memory research, attention assessment, and executive-function testing: card-pair concentration, digit-span (Number Memory), N-back, Chimp Test (visual working memory), simple reaction time, mental arithmetic blitz, and the Stroop interference task.
Each game uses scoring conventions that let users track personal progress: digit span by maximum length recalled, N-back by hit rate at each level, reaction time by ms median, Stroop by congruent-vs-incongruent latency. The Chimp Test reproduces the Inoue & Matsuzawa (2007) protocol where digits flash briefly then disappear; users tap them in numerical order. Speed Math escalates difficulty until the user can no longer keep pace, providing a self-calibrating challenge.
Memory concentration with theme decks
Recall digit sequences of growing length
Identify items matching N steps back
Tap flashed digits in numerical order
Click as soon as the screen changes
Mental arithmetic against a timer
Color-name vs ink-color interference
Sudoku, Logic Puzzles, Anagrams, Word Search
Dot Tracking, Peripheral Vision, Visual Scan, Mental Rotation, Trail Making
Calculus, Linear Algebra, Statistics, Discrete Math, Physics, Chemistry, Biology, Algorithms, Data Structures, Philosophy, Economics, Academic Writing, Psychology
No sign-up. No telemetry. Runs offline after first load.