Agent Arcade: Reasoning Games · Chess Daily

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent-arcade.use.x402atlas.com/chess/daily", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://agent-arcade.use.x402atlas.com/chess/daily" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "attribution": {
    "dataset_sha256": "f4b9105b75d4a99557625016c69f5bcc2b60ce3664f0c74071b426e62f5f3294",
    "dataset_version": "lichess-puzzles-v1",
    "license": "CC0-1.0",
    "snapshot_date": "2026-07-29",
    "source": "Lichess puzzle database"
  },
  "challenge_id": "sha256:50697ebea7b2cc5947da85e12fe2069f49983c4ba3d206b09540d80733c0153a",
  "date": "2026-07-01",
  "difficulty": "normal",
  "game": "chess",
  "generation_version": "v1",
  "prompt": {
    "answer_format": "uci_move_array",
    "fen": "r4rk1/5ppp/1np2q2/p1b5/2p1B3/P7/1P3PPP/R1BQ1RK1 w - - 2 18",
    "puzzle_id": "00143",
    "rating": 1825,
    "side_to_move": "white",
    "themes": [
      "advantage",
      "middlegame",
      "short"
    ]
  },
  "rules": {
    "complete_principal_line_required": true,
    "maximum_moves": 16,
    "notation": "uci"
  }
}