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About

Fast-Zero-Cross

What it is

A speed tic-tac-toe against the clock. Every move must be played within 2.5 seconds, or the game is lost at 4 seconds. The first move cannot be the centre square — it forces you off autopilot from the very first tap.

What it trains

Pattern reaction under pressure. Spotting forks and threats in a split second. Holding nerve when the clock is shorter than the thought.

What it is not

Not a puzzle book. Not a ranking system that grades your IQ. Not a gym for your brain. Just a short, sharp game — one rhythm, no nonsense.

Why this app helps another

A portion of proceeds helps keep Real Trauma Intelligence — our free trauma companion app — available to anyone who needs it, at no cost. You buying this game helps someone else find a quiet tool in a hard moment.

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