11 · Evidence Library

Public Source Register

Every material conclusion in this review is traceable to an entry below. Each source is graded by reliability level and states expressly what it does not establish.

Source reliability hierarchy

LEVEL 1 — FIRST-PARTY TECHNICAL

Chess.com Help Center, product documentation, API documentation.

LEVEL 2 — FIRST-PARTY CORPORATE

Chess.com news, announcements and official corporate statements.

LEVEL 3 — PARTNER SOURCE

Partner or co-organiser public statement.

LEVEL 4 — THIRD-PARTY ADJACENT

Prediction markets, press and other ecosystem participants.

13 of 13 sources

CC-AC-001 · Chess.com Support · Current help documentation

How Accuracy Is Determined (CAPS2)

CURRENTLevel 1

Chess.com describes a computer-implemented comparison of played moves against engine-determined best play, returning a numerical accuracy score for each player.

Establishes

  • Moves are processed computationally against a reference model.
  • A numeric per-game score is derived from move-level evaluation.

Does not establish

  • No economic value, resource allocation or reward is attached to a move.
  • No monetary point value or settlement mechanism is disclosed.

Relevance

Establishes the move-processing substrate on which a Miner's Gambit strategic-value model could operate.

Claims / domain

Claims 1, 7, 10-12AI / Move IntelligenceHigh — first-party technical
AIENGINECURRENTOpen source ↗

CC-GR-001 · Chess.com Support · Current help documentation

How Game Review Works

CURRENTLevel 1

Game Review provides move-by-move engine evaluation, key-moment identification, classification of each move and guided analysis of the completed game.

Establishes

  • Per-move classification is generated and displayed to the player.
  • Post-game structured analysis is a productised capability.

Does not establish

  • Classifications are informational; no reward, token or payment is attached.

Relevance

Move classification is the closest existing analogue to the patent's move-level point determination and display step.

Claims / domain

Claims 1, 7AI / Move IntelligenceHigh — first-party technical
AIENGINECURRENTOpen source ↗

CC-MC-002 · Chess.com Support · Current classification model

Move Classification and the Expected Points Model

CURRENTLevel 1

The newer move-classification model uses an Expected Points Model considering engine evaluation and player rating to estimate likely outcomes, producing categories including Brilliant, Great, Best, Excellent, Good, Inaccuracy, Mistake and Blunder.

Establishes

  • A computer model converts a move into an expected-outcome delta.
  • Player context (rating) already modifies the value assigned to a move.

Does not establish

  • Expected points are not monetary points and are not redeemable.
  • No external economic reference data participates in the model.

Relevance

Strongest single overlap: an existing computer-implemented model that assigns a value to an individual move.

Claims / domain

Claims 1, 7, 15AI / Move IntelligenceHigh — first-party technical
AIENGINECURRENTOpen source ↗

CC-EV-001 · Chess.com · Current platform

Events Broadcast Platform

CURRENTLevel 2

Chess.com's Events system supports live game relay, Stockfish analysis, tablebases, schedules, standings, embedded commentary, voting and broadcast to spectators.

Establishes

  • A global live game-event ingestion and distribution infrastructure exists.
  • Live board state is analysed and broadcast in real time.

Does not establish

  • No economic event engine, prediction engine or settlement layer is disclosed.

Relevance

The event pipeline is the natural insertion point for a Miner's Gambit economic orchestration layer.

Claims / domain

Claims 1, 13, 17, 18Tournament & BroadcastHigh — first-party product surface
EVENTSTOURNAMENTSCURRENTOpen source ↗

CC-EV-002 · Chess.com Support · Current help documentation

Events Page and Livestream Guide

CURRENTLevel 1

Guide describing live board tracking, move notation, Stockfish analysis panels and broadcast workflows for followed events, including over-the-board competitions.

Establishes

  • Structured live move data is tracked and presented for both online and physical events.

Does not establish

  • No move-level economic consequence is described.

Relevance

Supports the physical-board capture pathway contemplated by the patent architecture.

Claims / domain

Claims 17, 18Tournament & BroadcastHigh — first-party technical
EVENTSTOURNAMENTSCURRENTOpen source ↗

CC-API-001 · Chess.com · Current documentation

Published-Data API (PubAPI) Documentation

CURRENTLevel 1

PubAPI is a read-only REST interface exposing public player, game, club and tournament information in JSON-LD form.

Establishes

  • Structured, externally accessible game and tournament data exists.

Does not establish

  • The public API cannot presently be used to submit game moves.
  • It does not demonstrate any Miner's Gambit functionality.

Relevance

Demonstrates that game events are already externally addressable structured data objects.

Claims / domain

Claims 13, 18Structured Data / APIHigh — first-party technical
APICURRENTOpen source ↗

CC-CR-001 · Chess.com · 2021

CryptoChamps, Powered by Coinbase

HISTORICALLevel 2

Chess.com publicly promoted a chess tournament involving prominent figures from the cryptocurrency ecosystem, powered by Coinbase.

Establishes

  • First-party Chess.com promotion within the cryptocurrency ecosystem.
  • Commercial willingness to associate the brand with digital-asset partners.

Does not establish

  • No cryptocurrency mechanic operated inside gameplay.
  • Not necessarily current strategy.

Relevance

Evidences historical appetite for the chess x crypto intersection at the sponsorship layer.

Claims / domain

Claims 2-6 (adjacency)Digital Assets & CryptoModerate — historical corporate
CRYPTOHISTORICALTOURNAMENTSOpen source ↗

CC-BC-001 · Chess.com / Charlotte Chess Center · 2021

Blitzcoin Invitational Announcement

HISTORICALLevel 2

Chess.com and the Charlotte Chess Center presented a tournament in which players competed for their share of one Bitcoin.

Establishes

  • Bitcoin-denominated competitive chess prize pools have already occurred with Chess.com involvement.

Does not establish

  • Bitcoin operated as a prize at the edge of the event, not within gameplay logic.

Relevance

Baseline case for moving digital value from tournament prize into move-level economic logic.

Claims / domain

Claims 2-6, 15Digital Assets & CryptoModerate — historical corporate
CRYPTOHISTORICALTOURNAMENTSOpen source ↗

CC-BC-002 · Chess.com · 2021

Blitzcoin Invitational Final Payouts

HISTORICALLevel 2

Event coverage reported Daniel Naroditsky receiving 0.296 BTC for first place and Awonder Liang 0.148 BTC for second.

Establishes

  • Actual settlement of chess competition outcomes in Bitcoin was reported.

Does not establish

  • No automated or smart-contract settlement mechanism is described.

Relevance

Shows the commercial precedent for digital-asset settlement of competitive chess outcomes.

Claims / domain

Claims 15, 16Digital Assets & CryptoModerate — historical corporate
CRYPTOHISTORICALTOURNAMENTSOpen source ↗

CC-TC-001 · Chess.com · 2021-2022, subsequently discontinued

Treasure Chess NFT Marketplace

HISTORICALLevel 2

Chess.com described Treasure Chess as an experimental marketplace through which games could be minted into NFTs on Polygon using the ERC-721 standard and subsequently bought, sold, traded and gifted, including outside the marketplace. Chess.com subsequently discontinued the product, publicly stating that NFTs no longer aligned with its core vision.

Establishes

  • Chess game data has previously been connected to transferable blockchain assets.
  • Working familiarity with Polygon and ERC-721 tokenisation.

Does not establish

  • Tokenisation applied to the completed game record, not to moves, pieces or positions during play.
  • The product is discontinued and is not current functionality.

Relevance

Distinguishes GAME to ASSET tokenisation from the patent's MOVE to VALUE to EVENT architecture.

Claims / domain

Claim 14, Claims 2-6Blockchain & Digital AssetsHigh for the historical period; discontinued
NFTCRYPTOHISTORICALOpen source ↗

PT-EWC-001 · Chess.com · 2026

2026 Esports World Cup Chess Finals

CURRENTLevel 3

Chess.com's announcement identifies a US$1.5 million prize fund and describes the competition as a high-stakes tournament spectacle.

Establishes

  • Competitive chess is operating at esports-scale prize economics with global broadcast.

Does not establish

  • No programmable prize pool, tokenisation or spectator economic layer is disclosed.

Relevance

Establishes the commercial scale that a programmable reward architecture could serve.

Claims / domain

Claims 15, 16Tournament & CommercialModerate — partner/organiser
TOURNAMENTSEVENTSCURRENTOpen source ↗

PUBLIC EVIDENCE 12 · Chess.com · 2026

2026 Esports and Champions Chess Tour Ecosystem

CURRENT

The qualification ecosystem includes the Speed Chess Championship and Chess.com Global Championship, each announced with substantial prize pools across a year-round competitive pathway.

Establishes

  • A continuous calendar of high-value, structured, broadcast competitive events.

Does not establish

  • No economic gameplay mechanics are described.

Relevance

A recurring event calendar is the distribution surface for any new economic chess format.

Claims / domain

Claims 15, 18
TOURNAMENTSEVENTSCURRENTOpen source ↗

TP-PM-001 · Polymarket (third party) · 2025-2026 season

Speed Chess Championship Prediction Market

ADJACENTLevel 4

Polymarket offered a market on the winner of the 2025-2026 Speed Chess Championship and identified official Chess.com information as the resolution source.

Establishes

  • Externally observable market demand for chess-event outcomes.
  • Chess-event data is suitable as an externally verifiable resolution source.

Does not establish

  • This does not establish that Chess.com operates, sponsors or endorses Polymarket's market.

Relevance

Adjacent validation for a far richer, move-level event vocabulary under Miner's Gambit.

Claims / domain

Claim 9PredictionLow as to Chess.com; ecosystem only
PREDICTIONCRYPTOADJACENTOpen source ↗