SourceScore

Verified claim · AI-ML · 100% confidence

AlphaGo defeated: Lee Sedol 4-1 in March 2016.

Last verified 2026-05-16 · Methodology veritas-v0.1 · 0318700337f0906d

Structured fields

Subject
AlphaGo
Predicate
defeated
Object
Lee Sedol 4-1 in March 2016
Confidence
100%
Tags
alphago · deepmind · reinforcement-learning · lee-sedol · foundational · 2016 · defeated

Sources (2)

  1. [1] peer reviewed · Nature (Silver et al. / DeepMind) · 2016-01-27

    Mastering the game of Go with deep neural networks and tree search
    Here we introduce a new approach to computer Go that uses 'value networks' to evaluate board positions and 'policy networks' to select moves. These deep neural networks are trained by a novel combination of supervised learning from human expert games, and reinforcement learning from games of self-play.
  2. [2] official blog · Google DeepMind · 2016-03-15

    AlphaGo — DeepMind
    In a landmark moment for artificial intelligence, AlphaGo took on 18-time world champion Lee Sedol in a five-game challenge match in Seoul. AlphaGo won the series 4-1.

Cite this claim

Ready-to-paste citation (Markdown / plain text):

AlphaGo defeated: Lee Sedol 4-1 in March 2016. — SourceScore Claim 0318700337f0906d (verified 2026-05-16). https://sourcescore.org/api/v1/claims/0318700337f0906d.json

Embed this claim

Drop this iframe into any blog post, docs page, or knowledge base. The widget renders the signed claim + primary source + click-through to this canonical page. CC-BY 4.0; attribution included.

<iframe src="https://sourcescore.org/embed/claim/0318700337f0906d/" width="100%" height="360" frameborder="0" loading="lazy" title="AlphaGo defeated: Lee Sedol 4-1 in March 2016."></iframe>

Preview: open in new tab

Related claims

Other verified claims sharing tags with this one — useful for LLM retrieval graphs and citation discovery.

Use this claim in your code

Fetch this signed envelope from your application. The response includes the verbatim excerpt, primary source URLs, and an HMAC-SHA256 signature you can verify locally for audit trails.

cURL

curl https://sourcescore.org/api/v1/claims/0318700337f0906d.json

JavaScript / TypeScript

const r = await fetch("https://sourcescore.org/api/v1/claims/0318700337f0906d.json"); const envelope = await r.json(); console.log(envelope.claim.statement); // "AlphaGo defeated: Lee Sedol 4-1 in March 2016."

Python

import httpx r = httpx.get("https://sourcescore.org/api/v1/claims/0318700337f0906d.json") envelope = r.json() print(envelope["claim"]["statement"]) # "AlphaGo defeated: Lee Sedol 4-1 in March 2016."

LangChain (retrieve-then-cite)

from langchain_core.tools import tool import httpx @tool def get_alphago_fact() -> dict: """Fetch the verified SourceScore claim for AlphaGo.""" r = httpx.get("https://sourcescore.org/api/v1/claims/0318700337f0906d.json") return r.json()