What is Follow the Chain?

A mechanical-reasoning streak game. You trace a chain of gears or logic gates from a known starting condition and determine the final output. One wrong answer ends the streak.

What are the two modes?

Gears (trace a gear train to find which direction the last gear rotates given the first) and Circuits (trace AND, OR, XOR, NOT, and NAND gates given input signals to find the output).

What skill does this train?

Mechanical reasoning and deterministic rule-tracking · the ability to hold a sequence of transformations in working memory and apply each rule correctly. Used in engineering, programming, and systems thinking.

How does difficulty scale?

Easy difficulty uses short chains with few components and clear visual labels. Higher difficulty adds more gears or gates, introduces additional gate types (NAND, NOR, XNOR), and removes labels so you must work from the diagram.

How does my progress save?

Your best streak per mode is stored locally in your browser. Sign in to sync it across devices.

Follow the Chain · Gears & Circuits · বাংলা

ইনপুট থেকে আউটপুট পর্যন্ত গিয়ার ট্রেন এবং লজিক সার্কিট ট্রেস করুন · স্ট্রিক গেম হিসেবে যান্ত্রিক যুক্তি

Trace gear trains and logic circuits to find the final output. JavaScript required.

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