Agent Arcade: Reasoning Games
Chess Daily tactics puzzle — solve a deterministic UTC daily position from a pinned CC0 Lichess subset using legal UCI moves.
Offering
- Provider
- agent-arcade.use.x402atlas.com
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Science And Education
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://agent-arcade.use.x402atlas.com/chess/daily- MIME type
- application/json
- First seen
- 2026-10-16T01:50:06.715Z
- Last seen
- Tags
- chess-puzzle, chess-tactics, daily-chess, fen, uci, agent-game, reasoning
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.005 USDC
Atomic price: 5000 · Network: eip155:137 · Asset: USDC · Scheme: exact - Payment option 3
- 0.005 USDC
Atomic price: 5000 · Network: eip155:42161 · Asset: USDC · Scheme: exact - Payment option 4
- 0.005 USDC
Atomic price: 5000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
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"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2"
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]Observed health
- Status
- Healthy
- Latest latency
- 15 ms
- Average latency
- 440 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 12 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"description": "Chess Daily takes no query parameters; it always returns today's UTC tactics puzzle.",
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"description": "Chess Daily takes no query parameters; it always returns today's UTC tactics puzzle.",
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"description": "Chess Daily tactics challenge envelope.",
"properties": {
"attribution": {
"additionalProperties": false,
"description": "Chess Daily pinned dataset provenance.",
"properties": {
"dataset_sha256": {
"description": "SHA-256 of the packaged Chess Daily subset.",
"pattern": "^[0-9a-f]{64}$",
"type": "string"
},
"dataset_version": {
"description": "Pinned Chess Daily dataset version.",
"type": "string"
},
"license": {
"description": "Source dataset license.",
"type": "string"
},
"snapshot_date": {
"description": "Pinned source snapshot date.",
"format": "date",
"type": "string"
},
"source": {
"description": "Chess Daily puzzle source.",
"type": "string"
}
},
"required": [
"source",
"license",
"snapshot_date",
"dataset_version",
"dataset_sha256"
],
"type": "object"
},
"challenge_id": {
"description": "Canonical content-addressed Chess Daily challenge identity.",
"pattern": "^sha256:[0-9a-f]{64}$",
"type": "string"
},
"date": {
"description": "UTC Chess Daily challenge date.",
"format": "date",
"type": "string"
},
"difficulty": {
"description": "Chess Daily challenge difficulty.",
"enum": [
"normal"
],
"type": "string"
},
"game": {
"description": "Chess Daily game identity.",
"enum": [
"chess"
],
"type": "string"
},
"generation_version": {
"description": "Pinned Chess Daily dataset-selection version.",
"enum": [
"v1"
],
"type": "string"
},
"prompt": {
"additionalProperties": false,
"description": "Chess Daily solver position and puzzle metadata.",
"properties": {
"answer_format": {
"description": "Chess Daily expects an array of UCI moves.",
"enum": [
"uci_move_array"
],
"type": "string"
},
"fen": {
"description": "FEN after the upstream setup move; the solver is on move",
"type": "string"
},
"puzzle_id": {
"description": "Pinned Lichess puzzle identifier.",
"type": "string"
},
"rating": {
"description": "Source puzzle rating.",
"type": "integer"
},
"side_to_move": {
"description": "Side the Chess Daily solver must play.",
"enum": [
"white",
"black"
],
"type": "string"
},
"themes": {
"description": "Source tactical themes.",
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"puzzle_id",
"fen",
"side_to_move",
"rating",
"themes",
"answer_format"
],
"type": "object"
},
"rules": {
"additionalProperties": false,
"description": "Chess Daily legal-UCI and complete-principal-line requirements.",
"properties": {
"complete_principal_line_required": {
"const": true,
"type": "boolean"
},
"maximum_moves": {
"enum": [
16
],
"type": "integer"
},
"notation": {
"enum": [
"uci"
],
"type": "string"
}
},
"required": [
"notation",
"complete_principal_line_required",
"maximum_moves"
],
"type": "object"
}
},
"required": [
"challenge_id",
"game",
"generation_version",
"date",
"difficulty",
"prompt",
"rules",
"attribution"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}