let pieceLine = { b: posParts[0], w: posParts[7].toLowerCase() };
let posBlack = { r: -1, n: -1, b: -1 };
const mapP = { r: 'j', n: 'l', b: 's' };
let pieceLine = { b: posParts[0], w: posParts[7].toLowerCase() };
let posBlack = { r: -1, n: -1, b: -1 };
const mapP = { r: 'j', n: 'l', b: 's' };