Allie, an intelligent chess bot, learns to play like a human by analyzing 91 million games on Lichess

Publié le 22 August 2025 à 09h21
modifié le 22 August 2025 à 09h22

Allie transcends the traditional concept of a chess bot. _A learning based on 91 million games_ shapes its artificial intelligence, allowing for thinking similar to that of human players. _This innovation opens fascinating perspectives_ in the world of the game, rivaling the greatest enthusiasts. Yiming Zhang, the designer of Allie, embodies an ambitious vision for the future of artificial intelligence. _Allie could enhance interaction between humans and machines._

Origins of Allie

Yiming Zhang, a PhD student at Carnegie Mellon University, designed Allie, an innovative chess bot. His creation is based on an in-depth analysis of 91 million games from the Lichess platform. This initiative fits into the current trend of using artificial intelligence to replicate human behaviors, particularly those related to complex fields like chess. Zhang did not grow up playing chess, but his interest was sparked by the television series The Queen’s Gambit.

The challenges of traditional chess bots

Before Allie, many enthusiasts lamented the experience of playing against chess bots. Zhang mentions that after learning the rules, he found himself in the bottom 10 to 20% of players online. The moves of the bots, often weird and incomprehensible, made learning uninteresting for beginners. This observation led Zhang to develop a system that imitates human thinking, taking into account the nuances of the game.

A human approach to AI

Allie strives to play in a way similar to a human, adapting to the expertise levels of players, whether they are beginners or experts. Unlike traditional chess engines that aim solely to win, Allie integrates human intelligence by taking time to analyze critical positions. This bot has been shaped by techniques similar to those underpinning the language models used by modern chatbots.

The training methods of Allie

The project relies on the analysis of 91 million transcriptions of games played on Lichess. This approach allows Allie to understand how a human player might think about their moves, thus providing a more immersive and instructive experience. Zhang emphasizes that this bot resigns when the game is definitively lost, unlike previous systems that continued to play in hopeless positions.

The implications of human intelligence in AI

Daphne Ippolito, Zhang’s advisor and assistant professor at the Language Technologies Institute, has addressed the current obsession with creating superhuman AI. The focus is on exploring opportunities for training AI models to act like humans. The intention is to use these systems in essential fields such as therapy, education, and medicine.

Feedback on Allie

Allie has already collected nearly 10,000 games since its deployment on Lichess. This underscores the relevance of its approach and how interactions with this type of AI can alter users’ perceptions of the game of chess. Ippolito notes that it is significant to study human interactions with AIs that attempt to mimic human behaviors.

Forecasts for the future

The development of Allie does not stop there. The team has opted for completely open-source code, allowing others to build upon and further improve the project. This accessibility fosters collaboration and idea exchange within the AI developer community.

A step towards more human games

Daniel Fried, an assistant professor involved in the project, expresses enthusiasm about how the adopted methods merge traditional AI research procedures with human behavior modeling. Preliminary results in complex games, such as Diplomacy, show the potential for applying these strategies to other verticals where AI must act strategically.

Allie at the heart of research

Allie was featured at the International Conference on Learning Representations in 2025 in Singapore, recognized as one of the major platforms for machine learning research. This project attracts the attention of researchers and academics, promising to enrich discussions on human intelligence versus AI.

FAQ about Allie, the intelligent chess bot learning to play like a human

How does Allie train to play chess?
Allie has been trained through the analysis of 91 million games played on Lichess, learning to imitate the strategies and moves of human players.

What is the difference between Allie and other traditional chess bots?
Unlike other chess bots that prioritize winning at all costs, Allie adopts a human-like approach, taking the time to assess complex positions and acting more naturally.

Can Allie adapt to different skill levels?
Yes, Allie is designed to adapt to different skill levels, ranging from beginners to experts, making the game accessible and interesting for everyone.

What are the potential applications of the AI developed by Allie?
The technology developed by Allie could be used in various fields such as therapy, education, and medicine, creating AI agents that think more humanely.

Is Allie available to the public?
Yes, Allie is fully open source, allowing users to explore it and potentially enrich the platform.

Where was Allie first presented?
Allie was presented at the International Conference on Learning Representations (ICLR) in 2025, a major event in machine learning research.

Can you play against Allie online?
Yes, Allie is available on the Lichess platform, where users can play against it directly in various game formats.

What are the benefits of using Allie for beginner players?
Allie offers an enriching learning experience for beginners by providing more understandable moves and allowing time to think, which helps develop their chess skills.

How does Allie simulate human thinking?
Allie imitates how humans think about chess by taking the time to consider different options before playing, unlike other bots that make instant moves.

What role did the team at Carnegie Mellon University play in the development of Allie?
The Carnegie Mellon team, led by Yiming Zhang, played a key role in the design and training of Allie, combining AI techniques with human behavior models.

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