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Xiyan's Blog
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Writings
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Rust
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The Tetris on the Home Page
Project
2026
The small Tetris board playing itself on this blog's home page is a guideline-accurate Rust engine, a search bot that out-digs Cold Clear 2 in the one comparison I could make rigorous, and an anytime-search architecture that fits tree search into a 60 Hz frame budget. The whole thing ships as 114 KB of WebAssembly, and most of the new code was written by an AI agent, which is its own part of the story. Also covered: the three years the project spent abandoned, and the neural network that didn't make it.