🔀 Trail Making Test
Alternating between numbers and letters measures how fast you can switch rules mid-task. Test A is the baseline; Test B adds a second stream to switch between.
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Tap 1 → A → 2 → B in order, as fast as you can without losing your place. The gap between your B time and your A time is your switching cost — the number this test was invented for.
How to play Trail Making
- 1Read the goal at the top of the screen (most games explain themselves inline).
- 2Use tap / swipe on mobile, or the arrow keys and space on a desktop.
- 3Beat your own score — personal bests are stored on your device.
about 4 min to play 🎯 MediumSolo · pass-and-play, one device