return "rnbqkbnr/8/pppppppp/8/8/PPPPPPPP/8/RNBKQBNR w 0";
let pieces = { w: new Array(8), b: new Array(8) };
for (let c of ["w", "b"]) {
return "rnbqkbnr/8/pppppppp/8/8/PPPPPPPP/8/RNBKQBNR w 0";
let pieces = { w: new Array(8), b: new Array(8) };
for (let c of ["w", "b"]) {