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Playing chess is an essential life lesson in concentration | Aeon Essays
The challenge of chess – learning how to hold complexity in mind and still make good decisions – is also the challenge of life

AI Model Leaderboards & Benchmarks
Explore leaderboards with expert-driven LLM benchmarks and updated AI model rankings across coding, reasoning and more.
atcade
Chess, checkers, four in a row, backgammon, mancala and reversi with anyone on Bluesky. Sign in with your account and challenge a handle.

Bridging the human–AI knowledge gap through concept discovery and transfer in AlphaZero
AI systems have attained superhuman performance across various domains. If the hidden knowledge encoded in these highly capable systems can be leveraged, human knowledge and performance can be advanced. Yet, this internal knowledge is difficult to extract. Due to the vast space of possible internal representations, searching for meaningful new conceptual knowledge can be like finding a needle in a haystack. Here, we introduce a method that extracts new chess concepts from AlphaZero, an AI system that mastered chess via self-play without human supervision. Our method excavates vectors that represent concepts from AlphaZero’s internal representations using convex optimization, and filters the concepts based on teachability (whether the concept is transferable to another AI agent) and novelty (whether the concept contains information not present in human chess games). These steps ensure that the discovered concepts are useful and meaningful. For the resulting set of concepts, prototypes (chess puzzle–solution pairs) are presented to experts for final validation. In a preliminary human study, four top chess grandmasters (all former or current world chess champions) were evaluated on their ability to solve concept prototype positions. All grandmasters showed improvement after the learning phase, suggesting that the concepts are at the frontier of human understanding. Despite the small scale, our result is a proof of concept demonstrating the possibility of leveraging knowledge from a highly capable AI system to advance the frontier of human knowledge; a development that could bear profound implications and shape how we interact with AI systems across many applications.

LLM Leaderboard 2026 — Compare Top AI Models
Compare the latest LLM benchmarks for GPT, Claude, Gemini and more. Updated rankings across reasoning, coding, math, and multilingual tasks with pricing and speed data.

Arena Leaderboard - a Hugging Face Space by lmarena-ai
This app displays the LMArena leaderboard in a full‑screen view, letting you see the latest rankings of language models at a glance. Just open the page and the leaderboard loads automatically—no in...
Sudoku-Bench
This leaderboard shows performance on the Sudoku-Bench reasoning evaluation dataset.
