What happens when you ask a 2026 coding agent like Claude Code to build a chess engine from scratch (with no plan, no architecture document, no step-by-step guidance) in a language that was never designed for this purpose? Building a chess engine is a non-trivial software engineering challenge: it involves board representation, move generation with dozens of special rules (castling, en passant, promotion), recursive tree search with pruning, evaluation heuristics, as well as a way to assess engine correctness and performance, including Elo rating. Doing it from scratch, with minimal human guidance, is a serious test of what coding agents can do today. Doing it in LaTeX’s macro language, which has no arrays, no functions with return values, no convenient local variables or stack frames, and no built-in support for complex data structures or algorithms? More than that, as far as I can tell, it has never been done before (I could not find any existing TeX chess engine on CTAN, GitHub, or TeX.SE). Yet, the coding agent built a functional chess engine in pure TeX that runs on pdflatex and reaches around 1280 Elo (the level of a casual tournament player). This post dives deep into how this engine, called TeXCCChess, works, the TeX-specific challenges encountered during development. You can play against it in Overleaf (see demo https://youtu.be/ngHMozcyfeY) or your local TeX installation https://youtu.be/Tg4r_bu0ANY, while the source code is available on GitHub https://github.com/acherm/agentic-chessengine-latex-TeXCCChess/
在发言中，习近平同志表示“正确的政绩观指导我们正确地改造主观世界”，并条分缕析阐释树立正确政绩观必须着重解决的问题。那一年，他在《浙江日报》“之江新语”专栏陆续发表文章，阐明政绩观的是非标准与实践路径。
歐盟外交事務最高官員卡婭·卡拉斯（Kaja Kallas）形容最新局勢「極為危險」。，详情可参考新收录的资料
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Especially notorious is lead chromate mixed in with cinnamon to achieve a bright colour or bulk out the powders.
The scoreboard tells a far different story, one that makes Biden’s track record in 2024 look better than Trump’s performance last year. The U.S. economy grew at a 2.8% pace during Biden’s last year, compared with 2.2% under Trump in 2025.，这一点在新收录的资料中也有详细论述