two target colors, one flipping rule — read the word or read the ink, your brain must switch on demand
tap words printed in green or blue ink
About
Dialed GG Stroop is a fast Stroop test game built on psychology's most famous interference experiment — and then turned up. Color words appear printed in mismatched ink. Each round names a pair of target colors, and the rule flips without warning: this round you ignore the ink and tap words that say RED or BLUE; next round you ignore the words and tap anything printed in green or pink ink. Reading is automatic, so every flip forces your brain to re-arm a new rule while the old one keeps interfering.
Like the classic card version, tiles come in two flavors: congruent (word matches its ink — a breather) and incongruent (word and ink disagree — the Stroop effect). Traps spell one of your target colors in the wrong dimension, and on Hard the two target colors themselves are near neighbors, like red plus orange. Five rounds, scored out of 50.
Built for anyone searching stroop test game, stroop test online, or a color word test to see how well their focus holds under interference.
How It Works
Each round names two target colors and one rule: find words that SAY them, or words PRINTED IN their ink. The rule switches between rounds, so re-read it every time.
Find and tap all matching tiles before time runs out — under the current rule only. A wrong tap shakes red and costs a point; the round continues, so recover fast.
Clearing instantly earns up to 10 points; slower clears keep fewer; each wrong tap subtracts 1. Five rounds, max 50.
Difficulty
Three dials turn as you progress. The rule flips every round between word-reading and ink-naming, so your brain can never settle into one strategy. The target count grows — from 2 tiles per round up to 4 on Easy and 6 on Hard, across a board that widens from 12 to 18 tiles. And the color pairs get crueler: Easy pairs are far apart (red plus blue), while Hard pairs are near neighbors — red/orange, orange/yellow, yellow/green, green/blue — that your eyes must tell apart tile by tile.
The final Hard round asks for 6 targets among 18 fully incongruent words in a blue-plus-purple pair, on a 12-second clock, right after a word-reading round. Rule switching plus fine color discrimination under pressure — that is the whole prefrontal cortex in miniature.
Game Modes
Practice alone on Easy or Hard. Replay freely to train interference control.
Share a link. Same five seeded word sets — a fair focus face-off.
One Hard set per day, worldwide. One attempt. Post your score to the leaderboard.
Benefits
The Stroop effect has been studied since 1935. You are not just playing — you are measuring how strongly reading interferes with naming.
Suppressing an automatic response (reading) to execute a deliberate one (naming ink) is core executive function — the skill ADHD research probes with this exact task.
Seeded rooms mean friends get identical word sets. Winner is focus, not luck.
No signup, no download. A full five-round game takes about ninety seconds on any device.
FAQ
A color word test: color names appear printed in mismatched ink, and each round names two target colors plus one rule — tap words that SAY those colors, or words PRINTED IN those inks. The rule flips between rounds. Five rounds, scored out of 50.
Named after John Ridley Stroop (1935): when a color word like BLUE is printed in red ink, naming the ink is measurably slower, because reading is automatic and interferes. Congruent tiles (word matches ink) are easy; incongruent tiles (word and ink disagree) trigger the effect — this game is built from both.
That is the difficulty. Switching between reading the word and naming the ink forces task-set switching on top of interference control — the round-one habit becomes the round-two trap.
Easy pairs far-apart colors (red + blue), asks for 2–4 targets among 12 tiles, and mixes in congruent breather tiles. Hard pairs near-neighbor colors (red + orange, blue + purple), asks for 3–6 targets among 18 fully incongruent tiles, on a tighter clock.
Clearing a round instantly earns up to 10 points. The slower you clear, the fewer you keep (down to 2), and each wrong tap subtracts 1. Running out of time scores 0.
Above 40/50 is excellent inhibition control. Most first sessions land between 18 and 32 — reading interference is strong in everyone.
No. Stroop tasks are used in attention research, but this is a game, not a diagnosis. If you have attention concerns, talk to a professional.
Yes — Multiplayer creates a shareable link so everyone gets the same five word sets. Same tiles, one winner.
Five rounds of word-versus-ink warfare. Free, no signup, any device.