4×4 SEARCH · 15 ROUNDS
Study the target, then find its one exact match among 15 similar pixel symbols.
Complete 15 four-second searches. Wrong answers and timeouts continue to the next round.
READY?
The target stays above the grid. Match its shape, pattern, and color.
Keyboard: 1–9 select cells 1–9; A–G select cells 10–16 · Touch or mouse: choose any cell
HOW TO PLAY
Press start and study the large target symbol above the grid.
Find its exact shape, pattern, and color match among the 16 numbered cells.
Tap the cell or press its visible key before the timing bar empties.
VISUAL SEARCH SPEED
You hold a target description in visual working memory, scan distractors, and map the matching position to a response. That combines attention, recognition, and choice reaction speed.
Every item combines shape, pattern, color, and a readable label. Color is never the only clue, and later Endless rounds use increasingly similar distractors.
READ YOUR RESULT
Average and best times use correct responses only. Standard accuracy includes all 15 rounds, including wrong choices and timeouts.
Endless score is your correct streak before the first miss. Its window begins at 4.0 seconds and shrinks toward 0.9 seconds as you progress.
QUESTIONS
The timer starts when the target and the 4×4 grid appear, then stops as soon as you choose a cell. Only correct response times enter the average.
No. Every item also has a distinct shape, surface pattern, and visible short label, so the target remains identifiable without color alone.
Keys 1 through 9 choose cells 1 through 9. Keys A through G choose cells 10 through 16. Each cell displays both its number and key.
Standard mode records the miss and continues until round 15. Endless mode gives you one life, so the first wrong answer or timeout ends the run.