# Danqi Chen on "Language Models that Play Chess and Explain Their Moves"

> The senior author's one post on the paper, quoting the lead author's thread: a 4B chess language model that plays at typical grandmaster level and explains its moves.

- Author: Danqi Chen ([@danqi_chen](https://x.com/danqi_chen))
- Posted: 2026-10-05, 1 posts
- Original: https://x.com/danqi_chen/status/2107160983496249486
- About: [Language Models that Play Chess and Explain Their Moves](https://introspection.infinite.fun/papers/bhaskar2026-chess-explain-moves.md)

The post text below is quoted verbatim. Figure descriptions are written by this wiki.

## 1/1

> Super proud of what the team has achieved @AdithyaNLP @jeff_cheng_77  (they are both great researchers and chess players)
>
> A 4B chess LM that plays chess at typical grandmaster level and explains its moves (!)
>
> I will discuss this work at Berkeley in 30 minutes.
>
> Also, I am around this week at @COLM_conf!

Quoting Adithya Bhaskar (@AdithyaNLP), 2026-10-05, https://x.com/AdithyaNLP/status/2107123924828049691:

> The most profound paper of my PhD so far. We truly did something special to make LMs play/explain chess, needing both architectural & algorithmic innovation (natural-language analogue of the Alphazero algorithm) + applicable to many other domains. Please read on and share!
>
> 1/10

[Post 1 on X](https://x.com/danqi_chen/status/2107160983496249486)

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Source: https://introspection.infinite.fun/threads/danqichen-chess-explain-moves · Part of the [LLM Introspection Wiki](https://introspection.infinite.fun/index.md) · Index for agents: [llms.txt](https://introspection.infinite.fun/llms.txt)