A free math game — play it in your browser, no install. A 3D handwriting math game: an MNIST neural network reads your answers right in the browser (TensorFlow.js + Three.js), with adaptive difficulty. 百鬼夜行
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Controls: Every yokai carries an equation. Its answer is always a single digit, 0–9
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Open the live demo Source on GitHubYokai pour out of the night along a shrine path, each carrying a math problem. You are a young onmyōji: handwrite the answer (0–9) on your talisman, a neural network running in your browser reads it, and the talisman flies at every yokai whose answer matches.
Behind the scenes, a simple MLP (Multi-Layer Perceptron) that I trained on the classic MNIST dataset with TensorFlow recognizes your handwriting. It is deployed with TensorFlow.js, so it runs entirely on your device.
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